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KIN 441: Foundational Anatomy and Skills for the Upper Extremity > Forearm and Hand (Chapter 3) Exam III > Flashcards

Forearm and Hand (Chapter 3) Exam III Flashcards

1
Q

What forms the “point” of the elbow?

A

olecranon process

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2
Q

What is the action of brachialis?

A

flex the elbow (humeroulnar joint)

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3
Q

What is the origin of brachialis?

A

distal half of anterior surface of humerus

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4
Q

What is the insertion of brachialis?

A

Tuberosity and coronoid process of ulna

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5
Q

when do you use your brachialis?

A

bringing food from the plate to the mouth, picking up a load of anatomy books, carrying a baby car seat

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6
Q

What actions does the brachioradialis execute?

A

flex the elbow, assist to pronate and supinate the forearm when these movements are resisted.

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7
Q

What is the origin of the brachioradialis?

A

proximal two-thirds of the lateral supracondylar ridge of humerus

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8
Q

What is the insertion of the brachioradialis?

A

styloid process of radius

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9
Q

when do you use the brachioradialis muscle?

A

turning a door handle or screwdriver, bringing a beer stein up to your mouth, whisking cream in a bowl, hositing a toddler out of her crib

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10
Q

What actions does the extensor carpi radialis longus and brevis execute?

A

extend the wrist, ad-duct the wrist, assist to flex the elbow

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11
Q

What is the origin of extensor carpi radialis longus?

A

distal one-third of the lateral supracondylar ridge of humerus

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12
Q

What is the insertion of extensor carpi radialis longus?

A

base of second metacarpal

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13
Q

What is the origin of extensor carpi radialis brevis?

A

common extensor tendon from the lateral epicondyle of humerus

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14
Q

What is the insertion of extensor carpi radialis brevis?

A

base of third metacarpal

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15
Q

What action is executed by extensor carpi ulnaris?

A

extend the wrist, and adduct the wrist

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16
Q

What is the origin of extensor carpi ulnaris?

A

common extensor tendon from the lateral epicondyle of humerus

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17
Q

What is the insertion of extensor carpi ulnaris?

A

base of fifth metacarpal

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18
Q

What action is executed by extensor digitorum?

A

extend the second through fifth fingers, assist to extend the wrist

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19
Q

What is the origin of extensor digitorum ?

A

common extensor tendon from the lateral epicondyle of humerus

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20
Q

What is the insertion of extensor digitorum?

A

bases of middle and distal phalanges of second through fifth fingers

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21
Q

“Wad of Three” is referring to what three muscles?

A

Brachioradialis, extensor carpi radialis lonus and brevis

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22
Q

What weak elbow extensor muscle is located lateral to the olecranon process?

A

Anconeus

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23
Q

what action does the anconeus do?

A

extend the elbow

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24
Q

What is the origin of the anconeus?

A

lateral epicondyle of the humerus

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25
Q

what is the insertion of the anconeus?

A

olecranon process and posterior, proximal surface of ulna

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26
Q

What small but crucial muscle assists the digitorum in specifically extending the index finger?

A

Exenstor Indicis

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27
Q

What actions does the extensor indicis execute?

A

extend the second finger, adduct the second finger, may assist to extend the wrist

28
Q

What is the origin of the extensor indicis ?

A

posterior surface of distal shaft of ulna and interosseous membrane

29
Q

What is the insertion of the extensor indicis?

A

tendon of the extensor digitorum at the level of the second metacarpal.

30
Q

What actions does the flexor carpi radialis do?

A

flex the wrist, ab-duct the wrist, may assist to flex the elbow

31
Q

What is the origin of the flexor carpi radialis ?

A

common flexor tendon from medial epicondyle of humerus

32
Q

what is the insertion of the flexor carpi radialis?

A

bases of second and third metacarpals

33
Q

what actions does palmaris longus do?

A

tense the palmar fascia, flex the wrist, and may assist to flex the elbow

34
Q

What is the origin of the palmaris longus?

A

common flexor tendon from meidal epicondyle of humerus

35
Q

what is the insertion of the palmaris longus?

A

flexor retinaculum and palmar aponeurosis

36
Q

What actions does flexor carpi ulnaris?

A

flex the wrist, adduct the wrist, and assist to flex the elbow

37
Q

What is the origin of flexor carpi ulnaris?

A

common flexor tendon from medial epicondyle of humerus, posterior surface of proximal two-thirds of ulna

38
Q

What is the insertion of flexor carpi ulnaris?

A

pisiform, hook of hamate and base of fifth metacarpal

39
Q

What actions does the flexor digitorum superficialis ?

A

flex the second through fifth fingers

40
Q

What is the origin of flexor digitorum superficialis?

A

common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna, interosseous membrane and proximal shaft of radius

41
Q

What is the insertion of flexor digitorum superficialis?

A

sides of middle phalanges of second through fifth fingers

42
Q

What is the actions of flexor digitorum profundus?

A

flex the second through fifth fingers

43
Q

what is the origin of flexor digitorum profundus?

A

anterior and medial surfaces of proximal three-quarters of ulna

44
Q

What is the insertion of flexor digitorum profundus?

A

bases of distal phalanges, palmar surface of second through fifth fingers

45
Q

What percentage of the population is the palmaris longus absent in?

A

11%

46
Q

What actions does the pronator teres execute?

A

pronate the forearm, assist to flex the elbow

47
Q

what is the origin of the pronator teres?

A

common flexor tendon from medial epicondyle of humerus and coronoid process of the ulna

48
Q

What is the insertion of the pronator teres?

A

middle of lateral surface of the radius

49
Q

when do you use your pronator teres?

A

turning a doorknob, arranging cups in the dishwasher, swimming the breaststroke

50
Q

What actions does the pronator quadratus execute?

A

pronate the forearm

51
Q

What is the origin of the pronator quadratus?

A

medial, anterior surface of distal ulna

52
Q

What is the insertion of the pronator quadratus?

A

lateral, anterior surface of distal radius

53
Q

What actions does the supinator execute?

A

supinate the forearm

54
Q

What is the origin of the supinatior?

A

lateral epicondyle of humerus, radial collateral ligament, annular ligament and supinator crest of the ulna

55
Q

What is the insertion of the supinator?

A

anterior, lateral surface of proximal one-third of radial shaft

56
Q

when do you use the supinator?

A

digging out a big scoop of ice cream, swirling the water in a bathtub, folding your clothes

57
Q

How many muscles are involved in moving the thumb?

A

8; four short and four long

58
Q

what actions does the abductor pollicis longus?

A

the ab-duct the thumb, extend the thumb, ab-duct the wrist

59
Q

what origin is the abductor pollicis longus?

A

posterior surface of radius and ulna, and interosseous membrane

60
Q

what is the insertion of the abductor pollicic longus?

A

base of the first metacarpal

61
Q

What actions does the extensor pollicis longus and brevis execute?

A

extend the thumb, ab-duct the wrist

62
Q

What is the origin of extensor pollicis longus?

A

posterior surface of ulna and interosseous membrane, posterior surface of radius and interosseous membrane

63
Q

What is the insertion of extensor pollicis longus?

A

base of distal phalanx of thumb, base of proximal phalanx of thumb

64
Q

what actions does the flexor pollicis longus?

A

flex the thumb, assist to flex the wrist

65
Q

what is the origin of flexor pollicis longus?

A

anterior surface of radius and interosseous membrane

66
Q

what is the insertion of flexor pollicis longus?

A

base of distal phalanx of thumb

KIN 441: Foundational Anatomy and Skills for the Upper Extremity (8 decks)

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