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Anatomy UE
Muscles (Upper trap - Diaphragm+ Coracobrachialis - Delts
| Question | Answer |
|---|---|
| Upper Trapezius PA | External occipital protuberance, medial third of superior nuchal line, nuchal ligament. |
| Upper Trapezius DA | Lateral third of clavicle and acromion. |
| Upper Trapezius N | CN XI Spinal accessory nerve and VR C3, C4 |
| Upper Trapezius A | Elevates, adducts, and upwardly rotates scapula. |
| Middle Trapezius PA | SP T1-5. |
| Middle Trapezius DA | Medial margin of acromion and superior lip of spine of scapula. |
| Middle Trapezius N | CN XI Spinal accessory nerve and VR C3, C4 |
| Middle Trapezius A | Adducts the scapula. |
| Lower Trapezius PA | SP T6-T12. |
| Lower Trapezius DA | Tubercle at apex of spine of scapula. |
| Lower Trapezius N | CN XI Spinal accessory nerve and VR C3, C4 |
| Lower Trapezius A | Depresses, adducts, upwardly rotates scapula. |
| Latissimus Dorsi PA | SP T7-T12, thoracolumbar fascia, iliac crest, and inferior 4 ribs. |
| Latissimus Dorsi DA | Floor of intertubercular groove of humerus. |
| Latissimus Dorsi N | Thoracodorsal n. (C6, C7). |
| Latissimus Dorsi A | Extends, adducts, and internally rotates humerus. |
| Rhomboid Major and Minor PA | Major = SP T2-5. Minor = Nuchal ligament and SP C7, T1. |
| Rhomboid Major and Minor DA | Medial border of scapula from level of spine to inferior angle. |
| Rhomboid Major and Minor N | Dorsal scapular n. (C5). |
| Rhomboid Major and Minor A | Adducts, elevates, and downwardly rotates scapula. |
| Levator Scapulae PA | TP C1-4. |
| Levator Scapulae DA | Superior part of medial border of scapula. |
| Levator Scapulae N | Dorsal scapular n. (C5). |
| Levator Scapulae A | Elevates and downwardly rotates scapula. |
| Teres Major PA | Dorsal surface of inferior angle of scapula. |
| Teres Major DA | Medial lip of intertubercular groove of humerus. |
| Teres Major N | Lower Subscapular n. (C6). |
| Teres Major A | Extends, adducts, and internally rotates humerus. |
| Supraspinatus PA | Supraspinous fossa of scapula. |
| Supraspinatus DA | Superior facet of greater tubercle of humerus. |
| Supraspinatus N | Suprascapular n. (C5). |
| Supraspinatus A | Abducts humerus; depresses and compresses humeral head in glenoid. |
| Infraspinatus PA | Infraspinous fossa of scapula. |
| Infraspinatus DA | Middle facet of greater tubercle of humerus. |
| Infraspinatus N | Suprascapular n. (C5). |
| Infraspinatus A | Externally rotates humerus; depresses and compresses humeral head in glenoid. |
| Teres Minor PA | Middle part of lateral border of scapula. |
| Teres Minor DA | Inferior facet of greater tubercle of humerus. |
| Teres Minor N | Axillary n. (C5). |
| Teres Minor A | Externally rotates humerus; depresses and compresses humeral head in glenoid. |
| Subscapularis PA | Subscapular fossa. |
| Subscapularis DA | Lesser tubercle of humerus. |
| Subscapularis N | Upper and Lower subscapular n.’s (C6). |
| Subscapularis A | Internally rotates humerus; depresses and compresses humeral head in glenoid. |
| Pectoralis Major PA | Clavicular head: Medial half of clavicle. Sternocostal head: Sternum, superior 6 costal cartilages, and aponeurosis of external oblique muscle. |
| Pectoralis Major DA | Lateral lip of intertubercular groove of humerus. |
| Pectoralis Major N | Lateral and medial pectoral n.’s (C6, C7, C8). |
| Pectoralis Major A | Adducts and internally rotates humerus. |
| Pectoralis Minor PA | 3rd to 5th ribs near their costal cartilages. |
| Pectoralis Minor DA | Coracoid process of scapula. |
| Pectoralis Minor N | Medial pectoral n. (C8, T1). |
| Pectoralis Minor A | Stabilizes scapula by drawing it inferiorly and anteriorly against the thoracic wall. |
| Serratus Anterior PA | External surfaces of lateral parts of 1st to 8th ribs. |
| Serratus Anterior DA | Anterior surface of medial border of scapula. |
| Serratus Anterior N | Long thoracic n. (C6, C7). |
| Serratus Anterior A | Abducts and upwardly rotates scapula; stabilizes the medial border of the scapula against thoracic wall. |
| Diaphragm PA | Upper lumbar vertebrae, lower 6 ribs and costal cartilages, xiphoid process. |
| Diaphragm DA | Central tendon of diaphragm. |
| Diaphragm N | Phrenic n. (C3, C4, C5) |
| Diaphragm A | Flattens central tendon, increasing vertical diameter of thoracic cavity in inspiration. |
| Coracobrachialis PA | Tip of coracoid process of scapula. |
| Coracobrachialis DA | Middle 1/3 of medial surface of the humerus. |
| Coracobrachialis A | Shoulder flexion and adduction. |
| Coracobrachialis N | Musculocutaneous (C5,C6,C7). |
| Brachialis PA | Distal ½ of anterior surface of humerus. |
| Brachialis DA | Coronoid process and ulnar tuberosity. |
| Brachialis A | Elbow flexion. |
| Brachialis N | Musculocutaneous (C5, C6) and radial (C5, C7). |
| Anconeus PA | Lateral epicondyle of humerus. |
| Anconeus DA | Lateral surface of olecranon and superior part of posterior surface of ulna. |
| Anconeus A | Elbow extension, stabilizes elbow joint. |
| Anconeus N | Radial (C7, C8, T1). |
| Biceps Brachii O | short head - coracoid process, long head - supraglenoid tubercle of the scapula |
| Biceps Brachii I | Radial tuberosity (and fascia of the forearm via bicipital aponeurosis). |
| Biceps Brachii N | Musculocutaneous (C5, C6) |
| Biceps Brachii A | Forearm supination, elbow flexion, shoulder flexion. |
| Triceps Brachii O | Long head: infraglenoid tubercle. Lateral head: posterior surface of the humerus superior to spiral (radial) groove. Medial head: posterior surface of the humerus inferior to spiral (radial) groove. |
| Triceps Brachii I | Olecranon process. |
| Triceps Brachii N | Radial (C7). |
| Triceps Brachii A | elbow extension |
| Deltoids O | Ant: lateral 1/3 of clavicle; Mid: Acromion; Post: spine of scapula |
| Deltoids I | deltoid tuberosity of humerus |
| Deltoids N | Axillary n. C5 |
| Deltoids A | Ant: flexes humerus; Mid: abducts humerus; Post: extends humerus |