Posterior Antebrachial Muscles Flashcards

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created 4 months ago by coop_25
Flashcards for the origin, insertion, action, & innervation of the posterior antebrachial muscles.
updated 4 months ago by coop_25
Subjects:
anatomy & physiology, anatomy & physiology i, anatomy and physiology 1
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1

Extensor Retinaculum

A tendon-like structure that crosses the carpals on the posterior side

2

Extensor Digitorum - Origin

Lateral epicondyle

3

Extensor Digitorum - Insertion

Phalanges of fingers 2-5

4

Extensor Digitorum - Action

Extension of fingers & wrist

5

Extensor Digitorum - Innervation

Radial nerve

6

Extensor Digiti Minimi - Origin

Lateral epicondyle

7

Extensor Digiti Minimi - Insertion

Phalanges of the 5th finger

8

Extensor Digiti Minimi - Action

Extension of 5th finger & wrist

9

Extensor Digiti Minimi - Innervation

Radial nerve

10

Extensor Carpi Ulnaris - Origin

Lateral epicondyle

11

Extensor Carpi Ulnaris - Insertion

Metacarpal V

12

Extensor Carpi Ulnaris - Action

Extension & adduction of the wrist

13

Extensor Carpi Ulnaris - Innervation

Radial nerve

14

Anconeus - Origin

Lateral epicondyle

15

Anconeus - Insertion

Olecranon process

16

Anconeus - Action

Extension of the elbow

17

Anconeus - Innervation

Radial nerve

18

Extensor Carpi Radialis Brevis - Origin

Lateral epicondyle

19

Extensor Carpi Radialis Brevis - Insertion

Metacarpal III

20

Extensor Carpi Radialis Brevis - Action

Extension of the wrist

21

Extensor Carpi Radialis Brevis - Innervation

Radial nerve

22

Extensor Carpi Radialis Longus - Origin

Lateral epicondyle & shaft of humerus

23

Extensor Carpi Radialis Longus - Insertion

Metacarpal II

24

Extensor Carpi Radialis Longus - Action

Extension & abduction of the wrist

25

Extensor Carpi Radialis Longus - Innervation

Radial nerve

26

Brachioradialis - Origin

Shaft of humerus

27

Brachioradialis - Insertion

Styloid process of radius

28

Brachioradialis - Action

Flexion of elbow

29

Brachioradialis - Innervation

Radial nerve

30

Supinator - Origin

Lateral epicondyle & elbow ligaments

31

Supinator - Insertion

Anterior radial shaft

32

Supinator - Action

Supination of the forearm

33

Supinator - Innervation

Radial nerve

34

Abductor Pollicis Longus - Origin

Posterior radial & ulnar shafts

35

Abductor Pollicis Longus - Insertion

Metacarpal I

36

Abductor Pollicis Longus - Action

Abduction of the thumb

37

Abductor Pollicis Longus - Innervation

Radial nerve

38

Extensor Pollicis Brevis - Origin

Posterior radial shaft

39

Extensor Pollicis Brevis - Insertion

Proximal phalanx of the thumb

40

Extensor Pollicis Brevis - Action

Extension of the thumb

41

Extensor Pollicis Brevis - Innervation

Radial nerve

42

Extensor Pollicis Longus - Origin

Posterior ulnar shaft

43

Extensor Pollicis Longus - Insertion

Distal phalanx of the thumb

44

Extensor Pollicis Longus - Action

Extension of the thumb

45

Extensor Pollicis Longus - Innervation

Radial nerve

46

Extensor Indicis - Origin

Posterior ulnar shaft

47

Extensor Indicis - Insertion

Posterior 2nd finger

48

Extensor Indicis - Action

Extension of the 2nd finger

49

Extensor Indicis - Innervation

Radial nerve