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15 Cards in this Set
- Front
- Back
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Deltoideus |
Scapula and Shoulder (Lateral) Attachments - Origin: spine and acromial process of the scapula Insertion: deltoid tuberosity Action - flexes shoulder joint Innervation - axillary nerve |
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Infraspinous |
Scapula and Shoulder (Lateral) Attachments - Origin: infraspinous fossa Insertion: small area on the lateral side of the greater tubercle of the humerus Action - w/o weight: extend/stabilize or flex shoulder joint abduct shoulder joint and rotate the shoulder laterally w/ weight: prevent medial rotation Innervation - suprascapular nerve |
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Teres minor |
Scapula and Shoulder (Lateral) Attachment - Origin: infraglenoid tubercle and distal third of the scapula's caudal border Insertion: teres minor tuberosity of the humerus Action - w/ weight: prevent medial rotation w/out weight: flex the shoulder joint and rotate the shoulder laterally |
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Supraspinatus |
Scapula and Shoulder (Lateral) Attachment - Origin: supraspinous fossa Insertion: greater tubercle of the humerus by a thick tendon Action - To extend and laterally stabilize the shoulder joint Innervation - suprascapular nerve |
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Subscapularis |
Scapula and Shoulder (Medial) Attachment - Origin: subscapular fossa Insertion: lesser tubercle of the humerus Action - w/o weight: adduct, extend, and medially stabilize the shoulder joint w/ weight: rotate the shoulder medially and prevent lateral rotation Innervation - subscapular nerve |
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Teres major |
Scapula and Shoulder (Medial) Attachment - Origin: caudal angle and caudal border of the scapula, caudal surface of the subscapularis Insertion: Teres major tuberosity Action - w/o weight: flex the shoulder, rotate the shoulder medially w/ weight: prevent lateral rotation |
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Coracobrachialis |
Scapula and Shoulder (medial) Attachment - Origin: coracoid process of the scapula Insertion: crest of the lesser tubercle of the humerus Action - adduct, extend, and stabilize the shoulder joint Innervation - Musculocutaneous nerve |
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Tensor fasciae antebrachii |
Caudal Muscles of the Arm (Brachium) Attachments - Origin: fascia covering the lateral side of the latissimus dorsi Insertion: the olecranon Action - extend the elbow Innervation - Radial nerve |
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Triceps brachii (long head) |
Caudal Muscles of the Arm (Brachium) Attachments - Origin: caudal border of the scapula Insertion: Olecranon tuber Action - extend the elbow and flex the shoulder Innervation - radial nerve |
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Triceps brachii (lateral head) |
Caudal Muscles of the Arm (Brachium) Attachments - Origin: tricipital line of the humerus Insertion: Olecranon tuber Action - Extend the elbow Innervation - radial nerve |
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Triceps brachii (accessory head) |
Caudal Muscles of the Arm (Brachium) Attachments - Origin: neck of the humerus Insertion: Olecranon tuber Action - extend the elbow Innervation - radial nerve |
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Triceps brachii (medial head) |
Caudal Muscles of the Arm (Brachium) Attachments - Origin: crest of lesser tubercle near the teres major tuberosity Insertion: Olecranon Action - extend the elbow Innervation - radial nerve |
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Anconeus |
Caudal Muscles of the Arm (Brachium) Attachments - Origin: lateral supracondylar crest and the lateral and medial epicondyles of the humerus Insertion: lateral surface of the proximal end of the ulna (olecranon) Action - extend the elbow Innervation - radial nerve |
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Biceps Brachii |
Cranial Muscles of the Arm Attachments - Origin: supraglenoid tubercle Insertion: the ulnar and the radial tuberosities Action - flex the elbow and extend the shoulder Innervation - Musculocutaneous nerve |
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Brachialis |
Cranial Muscles of the Arm Attachments - Origin: proximal third of the lateral surface of the humerus Insertion: the ulnar and the radial tuberosities Action - flex the elbow Innervation - Musculocutaneous nerve |
