Anterior Forearm Muscles Flashcards Preview

620: Clinical Human Anatomy > Anterior Forearm Muscles > Flashcards

Flashcards in Anterior Forearm Muscles Deck (32)
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1
Q

Origin of the Pronator Teres

A

Medial epicondyle of humerus

Coronoid process of ulna

2
Q

Insertion of pronator teres

A

Middle of lateral surface of radius

3
Q

What does the pronator teres do?

A

Pronates and flexes the forearm at the elbow

4
Q

What innervates the pronator teres?

A

Median nerve

5
Q

Origin of the flexor carpi radialis

A

medial epicondyle of humerus

6
Q

Insertion of the flexor carpi radialis

A

Bases of 2nd and 3rd metacarpals

7
Q

What does the flexor carpi radials do?

A

Flexes the wrist and radial deviation

8
Q

What innervates the flexor carpi radialis?

A

Median nerve (C6, C7)

9
Q

Origin of palmaris longus

A

Medial epicondyle of humerus

10
Q

Insertion of palmaris longus

A

Distal half of flexor retinaculum and palmar aponeurosis

11
Q

What does the palmaris longus do?

A

Flexes hand (at wrist) and tightens palmar aponeurosis

12
Q

What innervates the palmaris longus?

A

Median nerve

13
Q

Origin of the flexor carpi ulnaris

A

Medial epicondyle of humerus

Olecranon and posterior border of ulna

14
Q

Insertion of the flexor carpi ulnaris

A

Pisiform
Hook of hamate
5th metacarpal

15
Q

What does the flexor carpi ulnaris do?

A

Flexes wrist and ulnar deviation (adducts) at the wrist

16
Q

What innervates the flexor carpi ulnaris?

A

Ulnar nerve

17
Q

Origin of the flexor digitorum superficialis

A

Medial epicondyle of humerus

Superior half of anterior border of radius

18
Q

Insertion of flexor digitorum superficialis

A

Bodies of middle phalanges of 2nd – 5th digits

19
Q

What does the flexor digitorum superficialis?

A

Flexes proximal phalanges at metacarpophalangeal joints and hand (strongest)
Flexes middle phalanges at proximal interphalangeal joints of medial four digits

20
Q

What innervates the flexor digitorum superficialis?

A

Median nerve

21
Q

Origin of the flexor digitorum profundus

A

Proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane

22
Q

Insertion of the flexor digitorum profundus

A

Base of the distal phalanx of digits 2nd – 5th

23
Q

What does the flexor digitorum profundus do?

A

Flexes distal phalanges at distal interphalangeal joints of medial four digits; assists with flexion of hand

24
Q

What innervates the flexor digitorum profundus?

A

Medial part: ulnar nerve

Lateral part: median nerve

25
Q

Origin of the flexor pollicis longus

A

Anterior surface of radius and adjacent interosseous membrane

26
Q

Insertion of the flexor pollicis longus

A

Base of distal phalanx of thumb

27
Q

What does the flexor pollicis longus do?

A

Flexes phalanges of 1st digit (thumb)

28
Q

What innervates the flexor pollicus longus?

A

Median nerve

29
Q

Origin of the pronator quadratus

A

Distal 1/4 of anterior surface of ulna

30
Q

Insertion of the pronator quadratus

A

Distal 1/4 of anterior surface of radius

31
Q

What does the pronator quadratus do?

A

Pronates forearm

Deep fibers bind radius and ulna together

32
Q

What innervates the pronator quadratus?

A

Median nerve