Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
Trapezius (superior, middle, inferior) |
Origin: External occipital protuberance, superior nuchal line, nuchal ligament, C7-T12 Insertion: Medial 1/3 clavicle, acromion, spine scapula Innervation: Spinal Accessory n. (cranial n. XI) Action: Superior: elevation, Middle: retraction, Inferior: depression, Superior and inferior: superior rotation glenoid fossa
|
|
Latissimus dorsi |
Origin: T7-T12, Thoracolumbar ligament (L1-L5), posterior iliac crest, poster side ribs 9-12 Insertion: Floor intertubercular groove (bicipital groove) humerus Innervation: Thoracodorsal n. (C6, C7, C8) Action: IR, ADduction, Extension |
|
Levator scapulae |
Origin: Posterior tubercles of transverse process C1-C4 Insertion: Medial border scapula superior to root Innervation: Dorsal scapular n. (C5) Action: Elevates scapula |
|
Rhomboid major |
Origin: T2-T5 Insertion: Medial border scapula inferior to spine Innervation: Dorsal scapular n. (C5) Action: Scapular retraction |
|
Rhomboid minor |
Origin: Nuchal ligament, C7-T1 Insertion: Medial end spine scapula Innervation: Dorsal scapular n. (C5) Action: Scapular retraction |
|
Pectoralis major |
Origin: Medial 1/2 clavicle, sternum, costal cartilage of ribs 1-6, external oblique aponeurosis Insertion: Lateral lip intertubercular groove (bicipital groove) Innervation: Lateral and medial pectoral n. (C5-T1) Action: IR, ADduction, (clavicular head help w/ flexion) |
|
Pectoralis minor |
Origin: Costal cartilage ribs 3-5 Insertion: Medial border/superior surface coracoid process Innervation: Medial pectoral n. (C8 and T1) Action: Stabilize scapula by drawing toward thorax |
|
Serratus anterior |
Origin: Lateral surface ribs 1-8 Insertion: Anterior surface medial border scapula Innervation: Long thoracic n. (C5, C6, C7) Action: Protracts scapula, stabilizes scapula against thorax |
|
|
Subclavius |
Origin: Junction 1st rib and costal cartilage Insertion: Inferior surface middle 1/3 clavicle Innervation: Nerve to the subclavius m. (C5, C6) Action: Anchors/depresses clavicle, stabilizes SC joint |
|
Rotator cuff muscles |
SITS Supraspinatus Infraspinatus Teres minor Subscapularis |
|
Supraspinatus |
Origin: Supraspinous fossa Insertion: Superior facet greater tubercle of humerus Innervation: Suprascapular n. (C5, C6) Action: ABduction, stabilizes GHJ |
|
Infraspinatus |
Origin: Infraspinous fossa Insertion: Middle facet greater tubercle of humerus Innervation: Suprascapular n. (C5, C6) Action: ER, stabilizes GHJ |
|
Teres minor |
Origin: Middle portion lateral border scapula Insertion: Inferior facet greater tubercle humerus Innervation: Axillary n. (C5, C6) Action: ER, stabilizes GHJ |
|
Subscapularis |
Origin: Subscapular fossa Insertion: Lesser tubercle humerus Innervation: Upper and lower subscapular n. (C5, C6, C7) Action: IR, stabilizes GHJ |
|
Teres major |
Origin: Inferior angle scapula Insertion: Medial lip intertubercular groove Innervation: Lower supscapular n. (C5, C6) Action: IR, ADduction |
|
Deltoid |
Origin: Lateral 1/3 clavicle, acromion, spine scapula Insertion: Deltoid tuberosity Innervation: Axillary n. (C5, C6) Action: ABduction, Anterior: flexion and IR, Posterior: extension and ER |
