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48 Cards in this Set
- Front
- Back
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Deltoid - OAINB |
Origin (Proximal Attachment) - Anteriorfibers - lateral third of clavicle Middle fibers - lateral border of acromion Posterior fibers - inferior border of scapular spine Insertion(Distal Attachment)- Deltoidtuberosity of humerus Action- Anterior fibers - aid in flexion and medial rotation Middle fibers - abduct arm and aid supraspinatus Posterior fibers - aid extension and lateral rotation Nerve- Axillary nerve Blood- Posterior circumflex humeral artery and deltoid branch of thoracoacromialartery |
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Supraspinatus - OAINB |
Origin (Proximal Attachment) -Supraspinous fossa of scapula Insertion(Distal Attachment) - Greater tubercle of humerus Action- Assist deltoid in abducting arm (starts movement), fixes head of humerusin glenoid cavity and rotates head of humerus laterally Nerve- Suprascapular (C5, C6 superior trunk) Blood- Suprascapular artery (off thyrocervical trunk which is a branch of thesubclavian artery) |
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Infraspinatus - OAINB |
Origin (Proximal Attachment) -Infraspinous fossa of scapula Insertion(Distal Attachment) - Greater tubercle of humerus Action- Laterally rotates the arm Nerve- Suprascapular (C5, C6 superior trunk) Blood- Suprascapular artery (off thyrocervical trunk which is a branch of thesubclavian artery) |
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Teres minor - OAINB |
Origin (Proximal Attachment) - Dorsalsurface - axillary border of scapula Insertion(Distal Attachment) - Greater tubercle of humerus Action- Adducts, lateral rotation and draws humerus toward glenoid fossa Nerve- Axillary nerve (posterior cord) Blood- Circumflex scapular artery (off subscapular artery which arises from theaxillary artery) |
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Teres major - OAINB |
Origin (Proximal Attachment) - Dorsalsurface of inferior angle of scapula Insertion(Distal Attachment) - Intertubercular groove of humerus Action- Adducts, medial rotation, and extends humerus Nerve- Lower subscapular nerve (posterior cord) Blood- Circumflex scapular artery |
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Subscapularis - OAINB |
Origin (Proximal Attachment) - Subscapular fossa Insertion(Distal Attachment) - Lesser tubercle of humerus Action– adducts, medial rotation of humerus and stabilizes shoulder joint Nerve- Upper and lower subscapular nerves (posterior cord) Blood- Subscapular artery and lateralthoracic artery (axillary artery branches) |
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Pectoralis major - OAINB |
Origin (Proximal Attachment) - Anteriorand medial half of clavicle, sternum and costal cartilages of first six ribs Insertion(Distal Attachment) - Intertubercular groove of humerus Action– Adducts, flexes (just clavicular head) and medially rotates humerus Nerve- Lateral and medial pectoral nerves Blood- Pectoral branches of thoracoacromial artery/trunk |
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Pectoralis minor - OAINB |
Origin (Proximal Attachment) - Anteriorsurfaces of ribs 3-5 Insertion(Distal Attachment) - Coracoid process Action– Stabilizes scapula by drawing anteriorly/forward and rotates downward Nerve- Medial pectoral nerve Blood- Pectoral branches of thoracoacromial artery/trunk |
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Serratus anterior - OAINB
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Origin (Proximal Attachment) - Anteriorsurface of first 8 or 9 ribs Insertion(Distal Attachment) - Medial border of scapula Action– Protracts scapula and holds scapula against thoracic wall; rotatesscapula upward Nerve- Long thoracic nerve Blood- Lateral thoracic artery or branches of thoracodorsal artery |
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Subclavius - OAINB |
Origin (Proximal Attachment) - Firstrib Insertion(Distal Attachment) - Middle-third of clavicle, lower surface Action- Depresses clavicle Nerve- Nerve to subclavius muscle (upper trunk – C5 and C6) Blood- Clavicular branch of thoracoacromial artery/trunk |
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Flexor Muscles of the Arm (anterior) |
Coracobrachialis Biceps brachii Brachialis |
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Extensor muscles of the arm (posterior) |
Triceps brachii
Anconeus |
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Coracobrachialis - OAINB |
Origin (Proximal Attachment) - Coracoidprocess of the scapula Insertion(Distal Attachment) - Medial side of middle humerus Action– Adducts and flexes the arm Nerve- Musculocutaneous nerve Blood- Brachial artery, muscular branches |
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Biceps brachii - OAINB |
Origin (Proximal Attachment) - Longhead - supraglenoid tubercle of scapula Short head - coracoid process of scapula Insertion(Distal Attachment) - Posterior part of tuberosity of radius and bicipitalaponeurosis Action- Supination of forearm and flexion of elbow Nerve- Musculocutaneous nerve Blood- Brachial artery, muscular branches |
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Brachialis - OAINB |
Origin (Proximal Attachment) - Anteriorsurface of lower half of humerus Insertion(Distal Attachment) - Anterior surface of coronoid process of ulna Action- Flexion of elbow Nerve- Musculocutaneous nerve Note: small part of brachialis inposterior compartment - radial nerve Blood- Brachial artery, muscular branches |
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Triceps brachii - OAINB |
Origin (Proximal Attachment) - Longhead - infraglenoid tubercle of scapulaLateral head - posterior surfaceand lateral border of humerus, above radial grooveMedial head, distal to radialgroove Insertion(Distal Attachment) - Common tendon in upper surface of olecranon processof ulna Action- Extension of forearm (elbow) Nerve- Radial nerve Blood– Deep (profundus) brachial artery and muscular branches of brachial artery |
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Anconeus - OAINB |
Origin (Proximal Attachment) - Lateralepicondyle of humerus Insertion(Distal Attachment) - Olecranon and proximal 1/4 of posterior surface ofulna Action- Extension of forearm Nerve- Radial nerve Blood– Deep brachial artery |
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Extensor Forearm Muscles (posterior) |
Brachioradialis Extensor carpi radialis longus Extensor carpi radialis brevis Extensor digitorum Extensor digiti minimi Extensory carpi ulnaris |
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Brachioradialis |
Origin (Proximal Attachment) - Proximal2/3 of supracondylar ridge (humerus) Insertion(Distal Attachment) - Styloid process of radius Action- Flexes forearm Nerve- Radial nerve Blood- Radial artery and radial recurrent artery |
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Extensor carpi radialis longus
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Origin (Proximal Attachment) – Distal1/3 of supracondylar ridge (humerus) Insertion(Distal Attachment) - Base of the second metacarpal Action- Extend and abduct wrist Nerve- Radial Nerve Blood- Radial artery and radial recurrent artery |
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Extensor carpi radialis brevis
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Origin(Proximal Attachment) - Lateral Epicondyle of humerus Insertion(Distal Attachment) - Base of the third metacarpal Action- Extend and abduct wrist Nerve- Deep Radial Nerve Blood- Radial artery and radial recurrent artery |
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Extensordigitorum |
Origin (Proximal Attachment) - Commonextensor tendon (lateral epicondyle humerus) Insertion(Distal Attachment) – Extensor expansions of phalanges (2-5) Action- Extend the digits Nerve- Deep Radial nerve Blood- Ulnar artery, posterior interosseous branch |
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Extensordigiti minimi |
Origin (Proximal Attachment) - Commonextensor tendon (lateral epicondyle humerus) Insertion(Distal Attachment) – Extensor expansion of fifth digit Action- Extensor action for fifth digit Nerve– Deep Radial nerve Blood- Ulnar artery, posterior interosseous branch |
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Extensorcarpi ulnaris |
Origin (Proximal Attachment) - Lateralepicondyle of humerus and posterior border of ulna Insertion(Distal Attachment) - Base of fifth metacarpal Action- Extend and adduct wrist Nerve- Deep Radial nerve Blood- Ulnar artery, posterior interosseous branch |
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Extensor Muscles of the Forearm |
Supinator Abductor pollicis longus Extensor pollicis brevis Extensor pollicis longus Extensor indicis |
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Supinator |
Origin (Proximal Attachment) - Lateralepicondyle of humerus and posterior lateral surface or ridge of ulna Insertion(Distal attachment) - radius, lateral aspect Action- Supinates forearm Nerve- Deep radial Nerve Blood- Ulnar artery, posterior interosseousbranch and radial recurrent artery |
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Abductor pollicis longus |
Origin (Proximal Attachment) -Posterior surface of ulna and radius Insertion(Distal Attachment) - Dorsum of the first metacarpal Action- Abduction and extension of thumb Nerve- Deep radial nerve Blood- Ulnar artery, posterior interosseous branch |
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Extensor pollicis brevis
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Origin (Proximal Attachment) - Radiusand interosseous membrane Insertion(Distal Attachment) - Dorsum of the proximal phalanx Action- Extension of thumb Nerve- Deep radial nerve Blood- Ulnar artery, posterior interosseous branch |
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Extensor pollicis longus
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Origin (Proximal Attachment) - Middlethird of ulna and interosseous membrane Insertion(Distal Attachment) - Dorsum of the distal phalanx Action- Extension of the thumb Nerve- Deep radial nerve Blood -Ulnar artery, posterior interosseous branch |
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Extensor indicis |
Origin (Proximal Attachment) - Distalthird of ulna and interosseous membrane
Action- Extends the 2nd digit Nerve- Deep radial nerve Blood- Ulnar artery, posterior interosseous branch |
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Superficial flexor muscles of the forearm |
Pronator teres Flexor carpi radialis Palmaris longus Flexor carpi ulnaris Flexor digitorum superficialis (int. group) |
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Pronator teres |
Origin (Proximal Attachment) – 2 heads:medial epicondyle of humerus and coronoid process of ulna Insertion(Distal Attachment) – Lateral shaft of the radius Action- Pronation of wrist and flexes forearm Nerve- Median nerve Blood-Ulnar artery, anterior interosseous branch |
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Flexor carpi radialis |
Origin (Proximal Attachment) - Medialepicondyle of humerus Insertion(Distal Attachment) - Bases of 2nd and 3rd metacarpals Action- Flex and abduct wrist Nerve- Median nerve Blood- Radial artery |
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Palmaris longus |
Origin (Proximal Attachment) - Medialepicondyle of humerus Insertion(Distal Attachment) - Palmar aponeurosis Action– Flex wrist Nerve- Median nerve Blood- Ulnar artery, recurrent branches |
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Flexor carpi ulnaris |
Origin (Proximal Attachment) - Medialepicondyle of humerus and olecranon process of ulna Insertion(Distal Attachment) - Pisiform bone, hook of hamate and 5thmetacarpal Action– Flex and adduct wrist Nerve- Ulnar nerve Blood- Ulnar artery, recurrent branches |
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Flexor digitorum superficialis |
Origin (Proximal Attachment) - Medialepicondyle of humerus and shaft of radius Insertion(Distal Attachment) - Base of the medial phalanges (2-5) Action- Flexes the digits at the proximal interphalangeal joints (PIP) andmetacarpophalangeal joints (MCP) Nerve- Median nerve Blood- Ulnar muscular branches, radial muscular branches |
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DeepFlexor Muscles of the Forearm |
Flexor digitorum profundus (Note flexor indicis) Flexor pollicis longus Pronator quadratus |
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Flexor digitorum profundus |
Origin (Proximal Attachment) - Anteriorborder of the ulna Insertion(Distal Attachment) - Base of the distal phalanges (2-5) Action-Flexes the digits at the distal interphalangeal joints (DIP) Nerve- Ulnar (Medial Half); Median (Lateral Half) Blood- Ulnar artery, anterior interosseous branch |
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Flexor pollicis longus |
Origin (Proximal Attachment) -Anteriorsurface of the radius Insertion(Distal Attachment) - Base of the distal phalanx of the thumb Action- Flexes the thumb Nerve- Median nerve, anterior interosseous branch Blood- Ulnar artery, anterior interosseous branch |
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Pronator quadratus |
Origin (Proximal Attachment) - Lowerquarter of anterior surface of ulnar shaft Insertion(Distal Attachment) - Lower quarter of anterior surface of radius Action- Pronates the forearm and rotates the radius Nerve- Median nerve Blood- Ulnar artery, anterior interosseous branch |
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Hypothenar Compartment of Hand |
Abductor digiti minimi Flexor digiti minimi (brevis) Opponens digiti minimi |
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Abductor digiti minimi |
Hypothenar compartment
Origin (Proximal Attachment) - Pisiformbone and tendon of the flexor carpi ulnaris Insertion(Distal Attachment) - Base of proximal phalanx of 5th digit Action- Abducts 5th digit Nerve- Ulnar nerve, deep branch Blood– Deep palmar branch of the ulnar artery |
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Flexor digiti minimi (brevis) |
Hypothenar compartment Origin (Proximal Attachment) – Hook ofhamate and flexor retinaculum Insertion(Distal Attachment) - Base of proximal phalanx of 5th digit Action- Flexes 5th digit Nerve- Ulnar nerve, deep branch Blood- Deep palmar branch of the ulnar artery |
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Opponensdigiti minimi |
Hypothenar muscles Origin (Proximal Attachment) – Hook ofhamate and flexor retinaculum Insertion(Distal Attachemnt) - Medial border of 5th metacarpal (the wholelength of bone) Action- rotates 5th metacarpal (opposition) Nerve- Ulnar nerve, deep branch Blood- Deep palmar branch of the ulnar artery |
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Thenar compartment of hand |
Abductor pollicis brevis
Flexor pollicis brevis Opponens pollicis |
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Abductor pollicis brevis |
Thenar compartment
Origin (Proximal Attachment)- Scaphoid,trapezium and flexor retinaculum Insertion(Distal Attachment) - Lateral side of base of proximal phalanx of thumb Action- Abduction of thumb Nerve- Median nerve, recurrent branch Blood– Superficial palmar branch of the radial artery |
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Flexorpollicis brevis |
Thenar compartment Origin (Proximal Attachemnt) –Trapezium and flexor retinaculum Insertion(Distal Attachment) – Lateral side of base of proximal phalanx of thumb Action- Flexes the thumb Nerve- Median nerve, recurrent branch Blood- Superficial palmar branch of the radial artery |
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Opponenspollicis |
Thenar compartment Origin (Proximal Attachment) –Trapezium and flexor retinaculum Insertion(Distal Attachment) - Lateral shaft of 1st metacarpal. Action- Draws thumb to center of palm and rotates the digit (opposition) Nerve- Median nerve, recurrent branch Blood– Superficial branch of radial artery |
