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bone origins
Question | Answer |
---|---|
trapezius | dorsal midline of neck and thorax |
rhomboideus | -caudal surface of skull -dorsal midline of neck and thorax |
serratus ventralis | -last 5 cervical vertebrae -first 7-8 ribs |
omotransversarius | wing of atlas |
brachiocephalicus | -mastoid process -cranial half of dorsal midline of neck |
latissimus dorsi | spinous process of thoracic and first few lumbar vertebrae via the toracolumbar fascia |
superficial pectoral | cranial sternum |
deep pectoral | length of sternum |
extrinsic muscles attaching to scapula | trapezius rhomboideus serratus ventralis omotransversarius |
extrinsic muscles attaching to humerus | brachipcephalicus latissimus dorsi superficial pectoral deep pectoral |
craniolateral muscles of forearm | extensor carpi radialis common digital extensor lateral digital extensor ulnaris lateralis abductor pollicus longus |
caudomedial muscles of forearm | flexor carpi ulnaris flexor carpi radialis superficial digital flexor deep digital flexor ***all have an origin at medial epicondyle of humerus*** |
lateral muscles of shoulder | supraspinatus infraspinatus deltoideus |
medial muscles of shoulder | subscapularis teres major |
branial muscles of arm | biceps brachii brachialis |
caudal muscles of arm | tensor fascia antebrachii triceps brachii |
extensor carpi radialis | lateral epicondyle of humerus |
common digital extensor | lateral epicondyle of humerus |
lateral digital extensor | lateral epicondyle of humerus |
ulnaris lateralis | lateral epicondyle of humerus |
abductor pollicus longus | -middle third of lateral border of ulna -adjacent interosseous membrane |
muscles with origin at lateral epicondyle of humerus | extensor carpi radialis common digital extensor lateral digital extensor ulnaris lateralis |
flexor carpi ulnaris | -medial epicondyle of humerus -caudomedial surface of olecranon of ulna |
flexor carpi radialis | medial epicondyle of humerus |
superficial digital flexor | medial epicondyle of humerus |
deep digital flexor | -medial epicondyle of humerus -caudal border of ulna -medial border of radius |
supraspinatus | supraspinous fossa of scapula |
infraspinatus | infraspinous fossa of scapula |
deltoideus | spine and acromion of scapula |
subscapularis | subscapular fossa of scapula |
teres major | proximal portion of distal border of scapula |
biceps brachii | supraglenoid tubercle of scapula |
brachialis | proximal part of lateral humerus (brachial groove) |
tensor fascia antebrachii | fascia on lateral surface of latissimus dorsi |
triceps brachii | -long:caudal border of scapula, distal to origin of teres major m. -lateral: tricipital line of humerus -medial: crest of lesser tubercle -accessory: neck of humerus |