Muscle actions Flashcards
1
Q
Pronator teres
A
pronates forearm
Median nerve
2
Q
Flexor carpi radialis
A
Action = flexion and ABduction of wrist Innervation = median nerve
3
Q
Palmaris longus
A
Action = flex wrist & tense aponeurosis (the aponeurosis attaches to the skin and thus flexion of the palmaris longus tenses the palm, helps improve grip by resisting shearing forces). Innervation = median nerve
4
Q
Flexor digitorum superficialis
A
Action = quick flexion of proximal interphalangeal joints (PIPs) & metacarpophalangeal joints (MPs) of digits 2-5. Innervation = median nerve.
5
Q
Flexor carpi ulnaris
A
Action = flex and ADDuct wrist Innervation = ulnar nerve
6
Q
Flexor digitorum profundus
A
Action = slow flexion of distal interphalangeal joints (DIPs) and MPs of digits 2-5 Innervation = digits 2-3 are innervated by the median nerve while the digits 4-5 are innervated by the ulnar nerve
7
Q
Flexor digitorum superficialis
A
Action = quick flexion of proximal interphalangeal joints (PIPs) & metacarpophalangeal joints (MPs) of digits 2-5. Innervation = median nerve.
8
Q
Pronator quadratus
A
pronation, median nerve
9
Q
Brachioradialis
A
Action = accessory flexor at elbow Innervation = radial nerve
10
Q
Anconeus
A
Action = accessory extensor at elbow joint Innervation = radial nerve
11
Q
Extensor carpi radialis longus
A
Action = extends & ABducts wrist Innervation = radial nerve
12
Q
Extensor carpi radialis brevis
A
Action = extends & ABducts wrist Innervation = radial nerve
13
Q
Extensor digitorum
A
Action = extends digits 2-5 Innervation = radial nerve
14
Q
Extensor digiti minimi
A
Action = extend digit 5 Innervation = radial nerve
15
Q
Extensor carpi ulnaris
A
Action = extend & ADDuct wrist Innervation = radial nerve
16
Q
Supinator
A
Action = supination Innervation = radial nerve
17
Q
Abductor pollicis longus
A
Action = ABducts 1st MP joint (of thumb) Innervation = radial nerve
