origin/insertion/action/nerve innervations for the muscles listed below
Order by
21 terms
Latin | English |
|---|---|
| pectoralis minor |  O ribsI coracoid process A protraction of scapula N medial pectoral n. |
| serratus anterior | O angles of ribs I medial border of scapular A scapular protraction N long thoracic |
| subclavian | O 1st rib I inferior clavicle A depresses clavicle N nerve to subclavius |
| levator scapulae | O transverse processes of c1-c4 I superior/medial portion of scapula A scapular elevation, neck extension N nerve roots c2-c4 |
| rhomboid major | O- t2-t5 I medial border of scapula A scapular retraction N dorsal root scapular n. |
| upper trapezius | O ext occipital protuberance, occiput, SP of c7 I lateral 1/3 clavicle, acromion process A scapular elevation, neck elevation N spinal accessory n. |
| pectoralis major | O clavicle, sternum, ribs 1-6 I lesser tubercle A adduction, horizontal adduction, flexion N medial and lateral pectoral |
| coracobrachialis | O coracoid process I medial 1/3 of humerus A flexion, horizontal adduction N musculocutaneous n |
| biceps brachaii | O glenoid (long head) coracoid (short head) I radial tuberosity A shoulder flexion (weak), elbow flexion-main, supination N musculocutaneous |
| subscapularis RC | O subscapular fossa(ant portion of scapula) I lesser tubercle A internal rotation N subscapular n. |
| deltoid | O scapula, clavicle I deltoid tuberosity A flexion(ant), abduction (mid), extension(post) N axillary n |
| supraspinatus RC | O supraspinous fossa(above spine of scapula) I greater tubercle A abduction (primary: hold head of humerus) N suprascapular n. |
| infraspinatus RC | O infraspinous fossa I greater tubercle A external rotation N suprascapular n. |
| teres minor RC | O lateral border of scapula I greater tubercle A external rotation N axillary n. |
| latissimus dorsi | O thoracolumbar fascia, thoracic vertebrae, lumbar vertebrae I lesser tubercle A extension, adduction, internal rotation N thoracodorsal n. |
| teres major | O lateral border of scapula I lesser tubercle A extension, adduction, internal rotation N axillary n. |
| triceps brachii | O lateral border of scapula(long head), posterior humerus(medial and lateral heads) I olecranon process A shoulder extension-weak, elbow extension-primary job N radial n. |
| anconeus | O lateral epicondyle I dorsal ulna A elbow extension- weak N radial |
| brachialis | O an. humerus I coranoid process A elbow flexion (pronation) N musculocutaneous |
| brachioradialis | O lateral humerus I radial styloid A elbow flexion (neutral) N radial |
| rhomboid minor | O c7-t1 I medial border of scapula A scapular retraction N dorsal scapular n. |
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