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79 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Trapezius Muscle
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Origin: Superior Nuchal Line, external occipital protuberance, ligamentum nuchae, spinous process of CV7-TV12
Insertion: UPPER FIBERS: lateral third of clavicle, acromion process, spine of scapula. MIDDLE AND LOWER FIBERS: medial end of the spine of the scapula Function: UPPER: elevate shoulder. MIDDLE: retract shoulder. UPPER+LOWER: rotate the scapula allowing for abduction of arm. Innervation: Accesory Nerve (CN XI), CV3,CV4 Blood Supply: Transverse Cervical Artery. |
Origin (4)
Insertion (4) Function (3) Innervation (3) Blood Supply (1 - 2 names)) |
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Latissimus Dorsi Muscle
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Origin:spinous processes of TV7-Sacrum, inferior angle of the scapula, crest of the ilium, lower ribs LUMBAR REGION: via the posterior lamella of the thoracolumbar fascia
Insertion: Lesser tubercular ridge and intertubercular sulcus of the humerus. Function: extends, adducts, medially rotates the humerus (acts on shoulder) Innervation: Thoracodorsal Nerve Blood Supply: Thoracodorsal Vessels |
Origin (4)
Insertion (2) Function (3) Innervation (1) Blood Supply (1) |
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Levator Scapulae Muscle
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Origin: transverse processes of the upper four cervical vertebrae
Insertion: vertebral border of the scapula above the spine Function: Elevates the scapula Innervation: CV3, CV4 (cervical plexus) and Dorsal Scapular Nerve (CV5) Blood Supply: Dorsal Scapular Vessels |
Origin: 1
Insertion: 1 Function 1 Innervation: 3 Blood Supply: 1 |
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Rhomboideus Major Muscle
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Origin: spinous processes from CV7-TV-4
Insertion: vertebral broder of the scapula below the spine Function: retracts the shoulder Innervation: Dorsal Scapular Nerve Blood Supply: Dorsal Scapular Vessels |
Origin: 1
Insertion: 1 Function: 1 Innervation: 1 Blood Supply: 1 |
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Rhomboideus Minor Muscle
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Origin: lower part of ligamentum nuchae, and spine of CV-7
Insertion: vertebral border of the scapula at the level of the spine Function: retracts the shoulder Innervation: Dorsal Scapular Nerve Blood Supply: Dorsal Scapular Vessels |
Origin: 2
Insertion: 1 Function: 1 Innervation: 1 Blood Supply: 1 |
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Serratus Posterior Inferior Muscle
Serratus Posterion Superior Muscle |
Origin: spinous processes (midline)
Insertion: Ribs Function: Inspiration Innervation: Intercostal Nerves Blood Supply: Intercostal Artery and Vein |
Origin: 1
Insertion: 1 Function: 1 Innervation: 1 Blood Supply: 1 |
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What innervates the deep muscles of the back?
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Dorsal Primary Rami
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Does the Rhomboideus Minor lay above or below the rhomboideus major Muscle?
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Above
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Splenius Capitus and Splenius Cervicis Muscles
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Origin: Ligamentum Nuchae and spinous processes of CV7-TV-6
Insertion: Superior Nuchal Line, Mastoid Process, Transverse processes of CV2 or CV3 Function: TOGETHER: extend head and neck, INDIVIDUALLY: ipsilateral rotation of the head Innervation: Dorsal Primary Rami Blood Supply: Muscular Branches of Aorta |
Origin: 2
Insertion: 3 Function: 2 Innervation: 1 Blood Supply: 1 |
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Erector Spinae Muscles
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Components: Spinalis, Longissimus, Iliocostalis (medial to lateral)
Function: extensors of the back Innervation: Dorsal Primary Rami |
Components 3
Function 1 Innervation 1 |
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Transversospinal Group of Muscles
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Components:
-Semispinalis - most superficial - extend 6 segments -Multiifidus - 3-5 segments -Rotator - deepest - 1-2 segments Function: Contralateral Rotation Innervation: Dorsal Primary Rami |
Components 3
Function 1 Innervation 1 |
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What are the components of the Suboccipital Triangle?
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Inferior Oblique muscle
Superior Oblique Muscle Rectus Capitus Posterior Minor Muscle Rectus Capitus Posterior Major Muscle |
Components 4
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What nerve innervates all of the Suboccipital Triangle Muscles?
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Suboccipital Nerve (The dorsal ramus of C1)
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Inferior Oblique Muscle
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Origin: Spine of CV2
Insertion: Transverse Process of CV1 Function: extension and ipsilateral rotation of head and atlas Innervation: Suboccipital Nerve Rohen's: 237 |
Origin 1
Insertion 1 Function 2 Innervation 1 |
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Superior Oblique Muscle
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Origin: transverse process of CV1
Insertion: Occipital bone Function: extension and ipsilateral rotation of head and atlas Innervation: Suboccipital Nerve |
Origin 1
Insertion 1 Function 2 Innervation 1 |
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Rectus Capitus Posterior Minor Muscle
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Origin: Posterior Tubercle of CV1
Insertion: Occipital Bone Function: extension and ipsilateral rotation of head and atlas Innervation: Suboccipital Nerve |
Origin 1
Insertion 1 Function 2 Innervation 1 |
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Rectus Capitus Posterior Major Muscle
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Origin: Spinous Process of CV2
Insertion: occipital bone Function: extension and ipsilateral rotation of head and atlas Innervation: Suboccipital Nerve |
Origin 1
Insertion 1 Function 2 Innervation 1 |
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Pectoralis Major Muscle
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Origin: medial part of clivicle, sternum, costal cartilages of Ribs 2-5, and upper rectus sheath
Insertion: Greater Tubercular Crest of humerus Function: Adduction, medial rotation, and flexion of arm at shoulder joint Innervation: Medial and lateral pectoral nerves Blood Supply: Thoracoacromial trunk (pectoral branch), Lateral Thoracic Artery, Perforating intercostal branches, Anterior perforating branches of the internal thoracic artery |
Origin 4
Insertion 1 Function 3 Innervation 2 Blood Supply 4 |
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Pectoralis Minor Muscle
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Origin: ribs 2-4 or 3-5
Insertion: coracoid process of scapula Function: protracts and depresses shoulder Innervation: medial pectoral nerve Blood Supply: Pectoral Branch of Thoracoacromial Trunk |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Subclavius Muscle
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Origin: Junction of first rib with its cartilage
Insertion: inferior surface of the clavicle Function: Depresses clavicle Innervation: Nerve to Subclavius - Upper trunk of the brachial plexus Blood Supply: Clavicular Branch of Thoracoacromial Trunk |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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External Intercostal muscle
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Origin: lower border of rib above
Insertion: Upper portion of rib below function: Stabilization and inspiration Innervation: Intercostal Nerve Blood supply: Intercostal Artery and Vein |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Internal Intercostal muscle
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Origin: upper border of rib below
Insertion: lower border of rib above Function: expiration Innervation: Intercostal Nerve Blood Supply: Intercostal Artery and Veins |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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Innermost Intercostal Muscle
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The fibers of the internal intercostal which are separated by the intercostal nerves and vessels
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Description
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Conical projections of ventricular muscle related to the valve cusps.
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Papillary muscles
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Bundled muscle fibers in the auricle of the right and left atrium
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Pectinate muscles
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Papillary muscles
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Conical projections of ventricular muscle related to the valve cusps.
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Pectinate muscles
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Bundled muscle fibers in the auricle of the right and left atrium
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Erector Pili Muscles
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cutaneous muscles which raise hairs
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Platysma Muscle
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Origin: fascia in thoracic region
Insertion: inferior aspect of mandible Function: depresses jaw and lower lip (Grimacing) Innervation: Cutaneous (cervical) branch of Facial Nerve (CN VII) Blood Supply: Submental Artery and Suprascapular Artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 2 |
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Sternocleidomastoid muscle
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Origin: Manubrium and medial end of clavicle
Insertion: Mastoid Process Function: contralateral rotation, flexion of neck, accessory muscle of respiration Innervation: Accessory Nerve (CN XI), CV2, CV3 Blood Supply: Occipital Artery and Superior Thyroid Artery |
Origin 2
Insertion 1 Function 3 Innervation 3 Blood Supply 2 |
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Anterior Scalene Muscle
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Origin anterior tubercle of transverse processes of CV3-CV6
Insertion:Scalene tubercle of the first rib between the grooves for the subclavian vessels Function: inspiration, move vertebral column of neck Innervation: CV5-CV7 Blood Supply: Ascending Cervical Artery branch of Inferior Thyroid Artery |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Middle Scalene Muscle
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Origin: posterior tubercle of transverse processes of CV 2-7
Insertion: superior surface of first rib posterior to brachial plexus and subclavian artery Function: inspiration, move vertebral column of neck Innervation: CV3-CV-6 Blood Supply: Ascending Cervical Artery branch of Inferior Thyroid Artery |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Posterior Scalene Muscle
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Origin: Posterior tubercle of the transverse processes of CV 5-7
Insertion: second rib Function: inspiration, move vertebral column of neck Innervation: CV6-CV8 Blood Supply: Ascending Cervical Artery branch of Inferior Thyroid Artery and Superficial Cervical Artery |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply 2 |
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Omohyoid Muscle
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Origin: Upper Border of scapula
Insertion: lower border of hyoid bone Function: Depresses the larynx and hyoid bone. Also carries hyoid bone backward and to the side. Innervation: Ansa cervicales Blood Supply: ? |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply ? |
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What muscles form the boundary of the axilla?
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Pec Major, Pec Minor, Teres Major, LAt Dorsi, Serratus Anterior
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Subscapularis Muscle
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Origin: subscapular fossa of scapula (Costal surface of scapula)
Insertion: lesser tubercle of humerus Function: Medially rotates arm. Innervation: upper and lower subscapular nerves Blood Supply: Subscapular vessels. |
Origin 1
Insertion: 1 Function 1 Innervation 2 Blood Supply 1 |
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Teres Major Muscle
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Origin: inferior angle and adjacent axillary border of scapular
Insertion: Lesser tubercular ridge of humerus Function: Adductor and medial rotator of arm Innervation - lower subscapular nerve Blood Supply: subscapular vessels |
Origin 2
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Serratus Anterior Muscle
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Origin: Upper 8 ribs
Insertion: vertebral border of scapula Function: UPPER: Prevents retraction of the scapula and shoulder, LOWER FIBERS: assist trapezius in rotating the scapula or shoulder. Innervation: Long Thoracic Nerve (C5-C7) Blood Supply: UPPER: Lateral Thoracic Artery, LOWER: Thoracodorsal Artery |
Origin 1
Insertion 1 Fucntion 2 Innervation 1 Blood Supply: 2 |
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Transverse Thoracic Muscle
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Origin: Costal cartilage of last 3 ribs, xyphoid process, body of sternum
Insertion: Ribs, Costal cartilages of ribs 2-6 Function: Depresses ribs Innervation: Intercostal Nerves Blood Supply: Intercostal artery and vein |
Origin: 3
Insertion: 2 Function: 1 Innervation: 1 Blood Supply: 1 |
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Crista Terminales Muscle
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The crista terminalis is generally a smooth-surfaced, thick portion of heart muscle in a crescent shape at the opening into the right auricle.
Provides origin for pectinate muscles The SA node is located near this region. |
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Deltoid Muscle
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Origin: Lateral 1/3 of clavicle, lateral acromion, and crest of the spine of scapula.
Insertion: Deltoid Tuberosity Function: abducts the arm Innervation: Axillary Nerve Blood Supply: Posterior Circumflex humeral Artery and Deltoid Branch of Thoracoacromial Trunk |
Origin: 3
Insertion: 1 Function 1 Innervation 1 Blood Supply 2 |
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Supraspinatus Muscle
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Origin: supraspinatus fossa of the scapula
Insertion: Greater Tubercle of humerus Function: abducts arm, assists deltoid (first 15 degrees) Innervation: Suprascapular Nerve Blood Supply: Suprascapular Artery |
Origin: 1
Insertion: 1 Function: 1 Innervation: 1 Blood Supply 1 |
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Infraspinatus Muscle
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Origin: Infraspinatus fossa of the scapula
Insertion: Middle Facet of Greater tubercle of humerus Function lateral rotation of arm Innervation: Suprascapular nerve Blood Supply: Suprascapular Artery and Circumflex scapular artery |
Origin: 1
Insertion: 1 Function 1 Innervation 1 Blood Supply 2 |
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Teres Minor Muscle
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Origin: Lateral Border of Scapula
Insertion: Greater Tubercle of the humerus Function: lateral rotation of arm Innervation: Axillary Nerve Blood Supply: Posterior Circumflex Humeral Artery and Circumflex Scapular Artery |
Origin: 1
Insertion: 1 Function 1 Innervation 1 Blood Supply 2 |
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Coracobrachialis Muscle
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Origin: Coracoid Process of scapula
Insertion: halfway down medial aspect of humerus Function: adduction of arm Innervation: Musculocutaneous Nerve (C5-C7) Blood Supply: Brachial Artery |
Origin: 1
Insertion: 1 Function 1 Innervation 1 Blood Supply 1 |
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Biceps Brachii Muscle
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Origin: supraglenoid tubercle (long head); coracoid process (short head)
Insertion: radial tuberosity Function: flexes shoulder, flexes forearm at elbow, supinates forearm Innervation: Musculocutaneous nerve Blood Supply: Brachial Artery |
Origin: 2
Insertion: 1 Function 1 Innervation 1 Blood Supply 1 |
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Brachialis Muscle
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Origin: lower anterior half of humerus
Insertion: ulnar tuberosity Function: flexes forearm at elbow Innervation Musculocutaneous Nerve (C5,C6) Blood Supply: Radial Recurrent Artery |
Origin: 1
Insertion: 1 Function 1 Innervation 1 Blood Supply 1 |
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Triceps Brachii Muscle
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Origin: LONG HEAD on Infraglenoid tubercle of scapula, upper half of humerus, lower half of humerus
Insertion: Olecranon Process on ulna Function: extends forearm at elbow, extends shoulder Innervation: Radial Nerve and axillary nerve (long head) Blood Supply: Deep Brachial Artery |
Origin: 3
Insertion: 1 Function 2 Innervation 2 Blood Supply 1 |
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Brachioradialis Muscle
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Origin: Lateral supracondylar line of humerus
Insertion: styloid process of radius Function: flexes forearm at elbow Innervation: Radial Nerve Blood Supply: Radial Recurrent Artery |
Origin: 1
Insertion: 1 Function 1 Innervation 1 Blood Supply 1 |
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Pronator Teres Muscle
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Origin: SUPERFICIAL HEAD: medial epicondyle of humerus DEEP HEAD: medial side of coronoid process of ulna
Insertion: midpoint of lateral side of radial shaft Function: pronates forearm, flexes elbow Innervation: Median Nerve Blood Supply: Ulnar Artery and Radial Artery |
Origin: 2
Insertion: 1 Function: 2 Insertion: 1 Blood Supply 2 |
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Flexor Carpi Radialis Muscle
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Origin: medial epicondyle of humerus
Insertion: 2nd and 3rd metacarpal Function: flexion and abduction at wrist Innervation: Median Nerve Blood Supply: Ulnar Artery |
Origin: 1
Insertion: 2 Function 2 Innervation 1 Blood Supply 1 |
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Palmaris Longus muscle
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Origin: medial epicondyle of humerus
Insertion: flexor retinaculum, palmar aponeurosis Function: Flex Wrist Innervation: Median Nerve Blood Supply: Ulnar Artery |
Origin: 1
Insertion: 2 Function 1 Innervation 1 Blood Supply 1 |
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Flexor Carpi Ulnaris Muscle
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Origin: medial epicondyle of humerus
Insertion: Pisiform bone Function: Flexion of Wrist, Adduction Innervation: muscular branches of Ulnar Nerve Blood Supply: Ulnar Artery |
Origin: 1
Insertion: 1 Function 2 Innervation 1 Blood Supply 1 |
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Flexor Digitorum Superficialis Muscle
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Origin: medial epicondyle of humerus, radius
Insertion: middle phalanges of four fingers Function: Flexor of fingers at interphalangeal joints Innervation: Median Nerve Blood Supply: Ulnar Artery |
Origin: 2
Insertion: 1 Function 1 Innervation 1 Blood Supply 1 |
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Flexor Pollicis Longus Muscle
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Origin: anterior surface of radius, interosseous membrane
Insertion: distal phalanx of thumb Function: Flexion of thumb Innervation: Anterior Interosseous Nerve (branch of median) Blood Supply: Anterior Interosseous Artery |
Origin: 2
Insertion: 1 Function 1 Innervation 1 Blood Supply 1 |
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Flexor Digitorum Profundus Muscle
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Origin: posterior and medial surface of the ulna
Insertion: distal phalanges of four fingers Function: Flex hand at interphalangeal joints Innervation: Anterior Interosseous Nerve of Median Nerve and Muscular Branches of Ulnar Nerve Blood Supply: Anterior Interosseous Artery of the Ulnar Artery |
Origin: 2
Insertion: 1 Function: 1 Innervation: 2 Blood Supply: 1 |
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Pronator Quadratus Muscle
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Origin: medial anterior surface of the Ulna
Insertion: lateral anterior surface of the radius Function: Pronates the Forearm Innervation: Anterior Interosseous nerve of the Median Nerve Blood Supply: Anterior Interosseous artery |
Origin: 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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List the Arteries that Supply the deep muscles of the back from rostral to caudal.
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Vertebral Artery
Deep Cervical Artery Occipital Artery Transverse Cerical Artery Posterior Intercostal Artery Subcostal Artery Lumbar Artery Lateral Sacral Artery Very Deep Orifices Transcend Penis Sizes Like Luke's |
Arteries 8
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Abductor Pollicis Brevis Muscle
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Origin: Lateral end of Flexor Retinaculum
Insertion: lateral side of base of proximal phalanx Function: Abducts the thumb Innervation: Recurrent branch of median nerve Blood Supply: Superficial palmar branch of radial artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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Opponens Pollicis Muscle
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Origin: Lateral end of Flexor Retinaculum
Insertion: shaft of first metacarpal Function: Opposes the thumb Innervation: Recurrent branch of median nerve Blood Supply: Superficial palmar branch of radial artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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Flexor Pollicis Brevis Muscle
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Origin: Lateral end of Flexor Retinaculum
Insertion: lateral side of base of proximal phalanx (with Abductor Pollicis Brevis Muscle) Function: Flexes the thumb Innervation: Recurrent branch of median nerve Blood Supply: Superficial palmar branch of radial artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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Abductor Digiti Minimi (Quinti) Muscle
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Origin: Medial end of the Flexor Retinaculum
Insertion: medial side of base of proximal phalanx (with Flexor Digiti minimi Brevis Muscle) Function: Abducts the 5th digit Innervation: Deep Branch of Ulnar Nerve Blood Supply: Superficial and Deep Branches of Ulnar Artery |
Origin 1
Insertion 1 Function: 1 Innervation 1 Blood Supply 2 |
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Opponens digiti minimi (quinti) Muscle
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Origin: Medial end of the Flexor Retinaculum and hook of hamate
Insertion: medial side of entire fifth metacarpal Function: Opposes 5th digit. Innervation: Deep Branch of Ulnar Nerve (C8,T1) Blood Supply: Superficial and Deep Branches of Ulnar Artery |
Origin 2
Insertion 1 Function 1 Innervation 1 Blood Supply 2 |
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Flexor Digiti Minimi Brevis Muscle
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Origin: Medial end of the Flexor Retinaculum
Insertion: medial side of base of proximal phalanx (with abductor digiti minimi muscle) Function: flexes the 5th digit Innervation: Deep Branch of Ulnar Nerve Blood Supply: Superficial and Deep Branches of Ulnar Artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 2 |
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Lumbrical Muscles
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Origin: tendons of flexor digitorum profundus muscle (pass to lateral side of digit served)
Insertion: radial side of extensor tendons Function: helps to flex the metacarpophalangeal joints and extend the interphalangeal joints Innervation: LATERAL 2: median nerve, MEDIAL 2: ulnar nerve Blood Supply: mostly Ulnar artery, some Radial Artery |
Origin 1
Insertion 1 Function 2 Innervation 2 Blood Supply 2 |
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Adductor Pollicis Muscle
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Origin: TRANSVERSE HEAD: 2nd, 3rd, and 4th metacarpals. OBLIQUE HEAD: capitate bone
Insertion: medial side of first phalanx of thumb Function: Adducts the thumb Innervation: Deep Branch Ulnar Nerve Blood Supply: Deep Palmar Arch - Radial Artery |
Origin: 4 (3-1)
Insertion: 1 Function: 1 Innervation 1 Blood Supply: 1 |
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Palmar Interosseous Muscle
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Origin: metacarpal bone
Insertion: base of proximal phalanx and extensor tendon of digit acted upon Function: adductors Innervation: Deep Branch Ulnar Nerve Blood Supply: Deep palmar arterial arch - Radial Artery |
Origin 1
Insertion 2 Function 1 Innervation: 1 Blood Supply 1 |
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Dorsal Interosseous Muscles
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Origin: adjacent metacarpal bones
Insertion: base of proximal phalanx and extensor tendon Function: abductors Innervation: Deep Branch Ulnar Nerve Blood Supply: Deep Palmar Arterial Arch and branches |
Origin: 1
Insertion: 2 Function 1 Innervation 1 Blood Supply 1 |
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Extensor Carpi Radialis Longus Muscle
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Origin: lateral supercondylar ridge of humerus
Insertion: base of second metacarpal Function: Extends the hand at the wrist, Abducts hand at the wrist Innervation: main trunk of radial nerve Blood Supply: Radial Artery |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply: 1 |
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Extensor Carpi Radialis Brevis Muscle
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Origin: lateral epicondyle of radius
Insertion: base of third metacarpal Function: Extensor and abductor of the hand at the wrist. Innervation: deep branch of radial nerve Blood Supply: Radial Artery |
Origin: 1
Insertion: 1 Function 2 Innervation 1 Blood Supply 1 |
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Extensor Digitorum Muscle
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Origin: lateral epicondyle of radius
Insertion: as extensor hood to middle and distal phalanges of four fingers Function: extends the medial 4 digits of the hand. Innervation: Posterior Interosseous Nerve of radial nerve Blood Supply: Posterior interosseous artery - from ulnar |
Origin 1
Insertion 2 Function 1 Innervation 1 Blood Supply1 |
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Extensor Digiti minimi muscle
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Origin: lateral epicondyle of radius
Insertion: extensor hood of little finger Function: extends the little finger (5th digit) Innervation: Posterior interosseous nerve Blood Supply: posterior interosseous artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply: 1 |
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Extensor Carpi Ulnaris Muscle
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Origin: lateral epicondyle of radius
Insertion: base of fifth metacarpal Function: extends and adducts the wrist Innervation: Posterior Interosseous Nerve Blood Supply: Ulnar Artery |
Origin 1
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Anconeus Muscle
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Origin: lateral epicondyle of radius
Insertion: upper one fourth of ulna Function: extension of forearm, stabilises elbow, prevents inpingement in elbow joint. Innervation: main trunk of radial nerve Blood Supply: Deep Brachial Artery, Recurrent interosseous artery |
Origin 1
Insertion: 1 Function: 3 Innervation: 1 Blood Supply: 2 |
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Supinator Muscle
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Origin: lateral epicondyle of radius and ulna. (wraps around radius)
Insertion: medial surface of radius Function: supinates forearm Innervation: deep branch of radial nerve Blood Supply: Radial Recurrent Artery |
Origin: 2
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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Abductor Pollicis Longus Muscle
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Origin: radius and ulna (interosseous membrane)
Insertion: base of first metacarpal Function: abduction and extension of thumb Innervation: Posterior Interosseous Nerve Blood Supply: Posterior interosseous Artery |
Origin 2
Insertion 1 Function 2 Innervation 1 Blood Supply 1 |
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Extensor Pollicis Brevis Muscle
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Origin: radius
Insertion: proximal phalanx of thumb Function: extends thumb at metacarpophalangeal joint Innervation: posterior interosseous nerve Blood Supply: Posterior Interosseous artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
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Extensor Pollicis Longus Muscle
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Origin: ulna
Insertion: thumb, distal phalanx Function: extension of thumb at metacarpophalangeal and interphalangeal joint Innervation: posterior interosseous nerve Blood Supply: Posterior Interosseous Artery |
Origin 1
Insertion 2 Function 2 Innervation 1 Blood Supply 1 |
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Extensor Indicis Muscle
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Origin: ulna
Insertion: extensor hood of index finger Function: extends the index finger (2nd digit) Innervation: posterior interosseous nerve Blood Supply: Posterior interosseous artery |
Origin 1
Insertion 1 Function 1 Innervation 1 Blood Supply 1 |
