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Anatomy > Lecture 6 - Muscles > Flashcards

Lecture 6 - Muscles Flashcards

1
Q

What is the origin of the brachioradialis?

A

lateral supracondylar crest of humerus

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2
Q

What is the insertion of the brachioradialis?

A

distal 1/4 of the radius

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3
Q

What is the nerve of the brachioradialis?

A

radial n.

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4
Q

What is the action of the brachioradialis?

A

supinator of forearm and flexor of the elbow

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5
Q

What is the origin of the extensor carpi radialis?

A

lateral epicondyle of humerus

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6
Q

What is the insertion of the extensor carpi radialis?

A

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

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7
Q

What is the nerve of the extensor carpi radialis?

A

Radial n.

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8
Q

What is the action of the extensor carpi radialis?

A

extend the carpal joints

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9
Q

What is the origin of the extensor digitorum communis?

A

lateral epicondyle of humerus

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10
Q

What is the insertion of the extensor digitorum communis?

A

extensor processes of distal phalanges of digits II - IV

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11
Q

What is the nerve of the extensor digitorum communis?

A

Radial n.

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12
Q

What is the action of the extensor digitorum communis?

A

extend the joints of four principal digits and the carpus

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13
Q

What is the origin of the extensor digitorum lateralis?

A

lateral epicondyle crest of humerus

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14
Q

What is the insertion of the extensor digitorum lateralis?

A

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

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15
Q

What is the nerve of the extensor digitorum lateralis?

A

Radial n.

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16
Q

What is the action of the extensor digitorum lateralis?

A

Extend carpus and joints of digits III-V

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17
Q

What is the origin of the ulnaris lateralis?

A

lateral epicondyle of the humerus

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18
Q

What is the insertion of the ulnaris lateralis?

A

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

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19
Q

What is the nerve of the ulnaris lateralis?

A

Radial n.

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20
Q

What is the action of the ulnaris lateralis?

A

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

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21
Q

What is the origin of the abductor digiti I longus?

A

lateral border and cranial surface of ulna, interosseous membrane

22
Q

What is the insertion of the abductor digiti I longus?

A

proximal end of metacarpal I

23
Q

What is the nerve of the abductor digiti I longus?

A

Radial n.

24
Q

What is the action of the abductor digiti I longus?

A

abduct first digit or pollex and extend carpal joints

25
Q

What is the origin of the supinator?

A

lateral epicondyle of humerus

26
Q

What is the insertion of the supinator?

A

cranial surface of the proximal fourth of radius

27
Q

What is the nerve of the supinator?

A

Radial n.

28
Q

What is the action of the supinator?

A

Supinator of forearm and flexor of the elbow

29
Q

What is the origin of the pronator teres?

A

medial epicondyle of humerus

30
Q

What is the insertion of the pronator teres?

A

medial border of radius between proximal and middle thirds

31
Q

What is the nerve of the pronator teres?

A

Median n.

32
Q

What is the action of the pronator teres?

A

pronate antebrachium and flex elbow

33
Q

What is the origin of the pronator quadratus?

A

distal ulna

34
Q

What is the insertion of the pronator quadratus?

A

distal radius

35
Q

What is the nerve of the pronator quadratus?

A

Median n.

36
Q

What is the action of the pronator quadratus?

A

Pronate antebrachium

37
Q

What is the origin of the flexor carpi radialis?

A

medial epicondyle of humerus and medial border of radius

38
Q

What is the insertion of the flexor carpi radialis?

A

palmar side of base of metacarpals II and II

39
Q

What is the nerve of the flexor carpi radialis?

A

median n.

40
Q

What is the action of the flexor carpi radialis?

A

flex carpus

41
Q

What is the origin of the flexor carpi ulnaris?

A

Ulnar - caudal border and medial surface of olecranon

Humeral - medial epicondyle of humerus

42
Q

What is the insertion of the flexor carpi ulnaris?

A

accessory carpal bone

43
Q

What is the nerve of the flexor carpi ulnaris?

A

ulnar n.

44
Q

What is the action of the flexor carpi ulnaris?

A

flex carpus

45
Q

What is the origin of the flexor digitorium superficialis?

A

medial epicondyle of humerus

46
Q

What is the insertion of the flexor digitorium superficialis?

A

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

47
Q

What is the nerve of the flexor digitorium superficialis?

A

median n.

48
Q

What is the action of the flexor digitorium superficialis?

A

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

49
Q

What are the heads of the flexor digitorium profundus?

A

humeral, ulnar, radial

50
Q

What is the insertion of the flexor digitorium profundus?

A

flexor tubercle on palmar surface of distal phalanx of each digit

51
Q

What is the nerve of the flexor digitorium profundus?

A

median n and ulnar n

52
Q

What is the action of the flexor digitorium profundus?

A

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

Anatomy (44 decks)

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