muscles: back & arms Flashcards
what is the action of the latissimus dorsi?
extends adducts, medially rotates arm, pulls arm down & back
what muscles locations is between the shoulder blades deep?
rhombodius
what muscles origin is the spinous processes of c1-t5 (vertebrae)?
rhombodious
what muscles location is the superficial muscle of the upper back?
trapezius
what muscles origin is the spines of lower 6 thoracic vertebrae, crest saccrum & illium, lower 4 ribs?
lattisimus dorsi
what muscles action is to stabilize scapula, rotate the glenoid cavity down?
rhombodius
what is the insertion of the trapezius?
clavicle, acromion (scapula), and spine of scapula
what muscles location is the large muscle mid to lower back superficial?
latissimus dorsi
what is the insertion of the rhombodius?
medial edge of scapula
what is the origin of the trapezius?
occipital bone, bone of spines C7-T12
what muscles insertion is the interbercular groove of humerus?
latissimus dorsi
what is the action of the trapezius?
adduct scapula, rotate scapula upward, elevate and depress scapula and extending the head
what muscles location is the posterior upper arm?
triceps brachii
what is the action of the deltoid?
abduct, flex, & medially rotate arm.
what muscles insertion is the radial tuberosity & biceptal aponeurosis?
biceps brachii
what muscles location is the lateral “point” of the shoulder?
deltoid
what muscles action is to extend forarm, flex arm?
triceps brachii
what is the location of the biceps brachii?
superficial muscle of anterior arm
what is the origin of the triceps brachii?
long head on scapula inferior to glenoid cavity
Lateral head- lateral and posterior humerus
what muscles action is to flex the forearm, supponate the forarm, & flex the arm?
biceps brachii
what is the insertion of the deltoid?
deltoid tuberosity of the humerus
what muscles origin is the long head-scapula above glenoid cavity & short head- corocoid process of scapula?
biceps brachii
what muscles origin is the clavicle, acromion, & spine of scapula?
deltoid
what is the insertion of the triceps brachii?
olecranon of ulna