Exercise 7: The Muscular System (Upper Extremity Muscles I) Flashcards
Origin of deltoid
scapula,
clavicle
Origin of biceps brachii
proximal radius
Origin of brachialis
humerus
Origin of brachioradialis
humerus
Origin of pronator teres
humerus,
coronoid process of ulna
Origin of flexor carpi radialis
medial epicondyle of humerus
Origin of palmaris longus
medial epicodyle of humerus
Origin of flexor carpi ulnaris
medial epicondyle of humerus,
ulna
Origin of extensor carpi radialislongus
humerus
Origin of extensor digitorum
lateral epicondyle of humerus
Origin of extensor carpi ulnaris
lateral epicondyle of humerus
Insertion of extensor carpi ulnaris
5th metacarpal
Insertion of extensor digitorum
distal phalanges of 2nd to 5th digits
Insertion of extensor carpi radialislongus
2nd and 3rd metacarpals
Insertion of flexor carpi ulnaris
pisiform,
hamate,
base of 5th metacarpal
Insertion of palmaris longus
flexor retinaculum,
palmar aponeurosis
Insertion of flexor carpi radialis
2nd and 3rd metacarpals
Insertion of pronator teres
radius
Insertion of brachioradialis
styloid process of radius
Insertion of brachialis
coronoid process of ulna
Insertion of biceps brachii
proximal radius
Insertion of deltoid
humerus
Action of deltoid
abducts arm,
flexes and extends shoulders
Action of biceps brachii
flexes elbow,
supinates arm
Action of brachialis
flexes arm
Action of brachioradialis
flexes forearm
synergist of brachialis
Action of pronator teres
pronates forearm
Action of flexor carpi radialis
flexes wrist,
abducts hand
Action of palmaris longus
weakly flexes hand at wrist joint
Action of flexor carpi ulnaris
flexes and abducts hand at wrist joint
Action of extensor carpi radialislongus
extends and abducts wrist
Action of extensor digitorum
extends fingers,
flares or abducts fingers
Action of extensor carpi ulnaris
extends and abducts wrist