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Cat Muscles II
Upper Limb
| Term | Definition |
|---|---|
| Acromiodeltoid | O: acromion process of scapula; I: deltoid ridge of humerus; A: flexes and rotates humerus externally |
| Acromiotrapezius | O: spinous (neural) processes of cervical & thoracic vert; I: metacromion process and spine of scapula; A: draws scapula dorsally and medially |
| Brachialis | O: Humerus (lateral); I: Ulna (below semilunar notch); A: Flexes forearm |
| Brachioradialis | O: middle of humerus; I: distal end of radius; A: supinator of manus |
| Biceps brachii | O: (Tuberosity ridge surrounding) Glenoid fossa; I: Radius (tuberosity); A: Flexes forearm |
| Clavobrachialis | O: Clavicle; I: Proximal end of ulna; A: Draws humerus craniad |
| Clavotrapezius | O: nuchal line of skull & dorsal midline; I: clavicle; A: draws humerus craniad |
| Coracobrachialis | O: Coracoid process of the scapula; I: Mid-medial surface of the humerus; A: Flexes and adducts the arm at the shoulder joint |
| Epitrochlearis | O: Lateral surface of Latissimus dorsi; I: Olecranon process of ulna; A: Rotates ulna |
| Extensor carpi radialis | O: Humerus (distal); I: Metacarpals II and III; A: Extends manus |
| Extensor carpi ulnaris | O: Lateral epicondyle of humerus; I: Metacarpal V; A: Extends manus |
| Extensor digitorum communis | O: Humerus (distal). I: Digits II-V. A: Extends manus |
| Extensor digitorum lateralis | O: Humerus (distal). I: Digits II-V. A: Extends manus (digits) |
| Flexor carpi radialis | O: medial epicondyle of humerus. I: digits II and III. A: flexes manus |
| Flexor carpi ulnaris | O: medial epicondyle of humerus and ulna. I: carpal bone (pisiform). A: flexes manus |
| Flexor digitorum profundus | O: Humerus, ulna, radius. I: Digits I-V. A: flexes manus |
| Infraspinatus | O: infraspinous process of scapula. I: greater tuberosity of humerus. A: external rotation of the humerus |
| Levator scapulae ventralis | O: occipital bone and transverse process of atlas. I: metacromion process. A: draws scapula craniad |
| Palmaris longus | O: Medial epicondyle of humerus. I: Digits II-V. A: Flexes manus |
| Pectoantebrachialis | O: Manubrium. I: fascia of forelimb near the elbow. A: adducts and rotates the forelimb |
| Pectoralis major | O: Sternum; clavicle. I: Humerus. A: Adducts forelimb |
| Pectoralis minor | O: Anterior surfaces of the sternal ends of ribs 3-5. I: Coracoid process of scapula. A: Draws scapula forward and downwards |
| Pronator teres | O: Medial epicondyle of humerus. I: Radius (medial). A: Pronates manus |
| Spinodeltoid | O: spine of scapula. I: deltoid ridge of the humerus. A: elevates and rotates humerus |
| Spinotrapezius | O: neural processes of thoracic vertebrae. I: fascia around scapula. A: draws scapula dorsally and caudad |
| Subscapularis | O: subscapular fossa. I: lesser tuberosity of humerus. A: draws humerus medially |
| Supinator | O: Lateral epicondyle of humerus. I: Radius (proximal). A: Supinates manus |
| Teres major | O: axillary border of scapula. I: medial surface of humerus. A: draws humerus medially |
| Teres minor | O: Middle part of the axillary border of scapula. I: Inferior aspect of greater tubercle of humerus. A: rotates humerus |
| Triceps brachii (medial head) | O: Humerus. I: Olecranon process of ulna. A: Extends forearm |
| Triceps brachii (lateral head) | O: Humerus. I: Olecranon process of ulna. A: Extends forearm |
| Triceps brachii (long head) | O: Scapula. I: Olecranon process of ulna. A: Extends forearm |
| Supraspinatus | O: supraspinous fossa. I: greater tuberosity of humerus. A: extends (abducts) the humerus |
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