Lecture 6 - Muscles Flashcards Preview

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Flashcards in Lecture 6 - Muscles Deck (52):
1

What is the origin of the brachioradialis?

lateral supracondylar crest of humerus

2

What is the insertion of the brachioradialis?

distal 1/4 of the radius

3

What is the nerve of the brachioradialis?

radial n.

4

What is the action of the brachioradialis?

supinator of forearm and flexor of the elbow

5

What is the origin of the extensor carpi radialis?

lateral epicondyle of humerus

6

What is the insertion of the extensor carpi radialis?

small tuberosities on the dorsal surfaces of the base of the metacarpals II and II

7

What is the nerve of the extensor carpi radialis?

Radial n.

8

What is the action of the extensor carpi radialis?

extend the carpal joints

9

What is the origin of the extensor digitorum communis?

lateral epicondyle of humerus

10

What is the insertion of the extensor digitorum communis?

extensor processes of distal phalanges of digits II - IV

11

What is the nerve of the extensor digitorum communis?

Radial n.

12

What is the action of the extensor digitorum communis?

extend the joints of four principal digits and the carpus

13

What is the origin of the extensor digitorum lateralis?

lateral epicondyle crest of humerus

14

What is the insertion of the extensor digitorum lateralis?

proximal ends of all phalanges of digits III-V, but mainly the extensor processes of the distal phalanges of these digits

15

What is the nerve of the extensor digitorum lateralis?

Radial n.

16

What is the action of the extensor digitorum lateralis?

Extend carpus and joints of digits III-V

17

What is the origin of the ulnaris lateralis?

lateral epicondyle of the humerus

18

What is the insertion of the ulnaris lateralis?

lateral aspect of the proximal end of metacarpal V and accessory carpal bone

19

What is the nerve of the ulnaris lateralis?

Radial n.

20

What is the action of the ulnaris lateralis?

Abduct the manus, flex carpal joint, support carpus when extended to support weight

21

What is the origin of the abductor digiti I longus?

lateral border and cranial surface of ulna, interosseous membrane

22

What is the insertion of the abductor digiti I longus?

proximal end of metacarpal I

23

What is the nerve of the abductor digiti I longus?

Radial n.

24

What is the action of the abductor digiti I longus?

abduct first digit or pollex and extend carpal joints

25

What is the origin of the supinator?

lateral epicondyle of humerus

26

What is the insertion of the supinator?

cranial surface of the proximal fourth of radius

27

What is the nerve of the supinator?

Radial n.

28

What is the action of the supinator?

Supinator of forearm and flexor of the elbow

29

What is the origin of the pronator teres?

medial epicondyle of humerus

30

What is the insertion of the pronator teres?

medial border of radius between proximal and middle thirds

31

What is the nerve of the pronator teres?

Median n.

32

What is the action of the pronator teres?

pronate antebrachium and flex elbow

33

What is the origin of the pronator quadratus?

distal ulna

34

What is the insertion of the pronator quadratus?

distal radius

35

What is the nerve of the pronator quadratus?

Median n.

36

What is the action of the pronator quadratus?

Pronate antebrachium

37

What is the origin of the flexor carpi radialis?

medial epicondyle of humerus and medial border of radius

38

What is the insertion of the flexor carpi radialis?

palmar side of base of metacarpals II and II

39

What is the nerve of the flexor carpi radialis?

median n.

40

What is the action of the flexor carpi radialis?

flex carpus

41

What is the origin of the flexor carpi ulnaris?

Ulnar - caudal border and medial surface of olecranon
Humeral - medial epicondyle of humerus

42

What is the insertion of the flexor carpi ulnaris?

accessory carpal bone

43

What is the nerve of the flexor carpi ulnaris?

ulnar n.

44

What is the action of the flexor carpi ulnaris?

flex carpus

45

What is the origin of the flexor digitorium superficialis?

medial epicondyle of humerus

46

What is the insertion of the flexor digitorium superficialis?

palmar surface of the base of middle phalanges of digits II-V

47

What is the nerve of the flexor digitorium superficialis?

median n.

48

What is the action of the flexor digitorium superficialis?

flex carpal, metacarpophalangeal and proximal interphalangeal joints of II-V

49

What are the heads of the flexor digitorium profundus?

humeral, ulnar, radial

50

What is the insertion of the flexor digitorium profundus?

flexor tubercle on palmar surface of distal phalanx of each digit

51

What is the nerve of the flexor digitorium profundus?

median n and ulnar n

52

What is the action of the flexor digitorium profundus?

flex carpal and metacarpophalangeal joints and proximal and distal interphalangeal joints of digits