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Moore’s Clinical Anatomy > Forearm Muscles > Flashcards

Forearm Muscles Flashcards

1
Q

What is between ulna and radius

A

Interosseus membrane

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2
Q

Interosseous membrane

A

Between ulna and radius

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3
Q

What provides attachment to the forearm flexors

A

Medial epicondyle and supra-epicondylar ridge

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4
Q

What provides attachment to the forearm extensors

A

Lateral formations (epicondyle)

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5
Q

What type of forearm muscles lay anteriorly (movement)

A

Flexors and pronators

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6
Q

What nerve serves flexors and pronators

A

Median and ulnar nerves

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7
Q

What type of forearm muscles lay posteriorly (movement)

A

Extensors and Supinators

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8
Q

What nerve serves extensors and supinators

A

Radial nerve

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9
Q

Through what anterior compartment and a central compartment of the palm communicate

A

Carpal tunnel

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10
Q

What holds tendons of the flexor muscles in place

A

Palmar carpal ligament and flexor retinaculum

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11
Q

Three groups of the flexor/pronator muscles

A

1.superficial
2.intermediate
3.deep layer

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12
Q

Four muscles of the superficial layer (flexor-pronator muscles)

A

1.pronator teres
2.flexor carpi radius
3.palmaris longus
4.flexor carpi ulnaris

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13
Q

Muscle of the intermediate layer (flexor-pronator muscles)

A

Flexor digitorum superficialis

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14
Q

Three muscles of the deep layer (flexor-pronator muscles)

A

1.flexor digitorum profundus
2.flexor pollicis longus
3.pronator quadratus

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15
Q

Flexor of the forearm that is located in the posterior part

A

Brachioradialis

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16
Q

What nerve supllies brachioradialis

A

Radial nerve

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17
Q

What do Flexor digitorum superficialis/Flexor digitorum profund flex

A

metacarpophalangeal and wrist joints

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18
Q

Long flexors of the digits

A

Flexor digitorum superficialis
Flexor digitorum profund

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19
Q

What exactly does flexor digitorum superficialis flex

A

Middle phalanges

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20
Q

What exactly does flexor digitorum profund

A

Medial part-Distal phalanges at 4th and 5th
Lateral part-2nd and 3rd

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21
Q

Proximal attachment of the FDS

A

Medial epicondyle (humero-ulnar head)
Superior half of the anterior border (radial head)

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22
Q

Distal attachments of the FDS

A

Shafts of middle phalanges of medial 4 finger

23
Q

Proximal attachment of the FDP

A

Three quarters of medial and anterior surface of ulna

24
Q

Distal attachment of FDP

A

Bases of distal phalanges
Medial-4th and 5th
Lateral-2nd and 3rd

25
Q

Innervation of FDS

A

Median nerve

26
Q

Innervation of FDP

A

Ulnar nerve

27
Q

Proximal attachment of pronator teres

A

Ulnar head-coronoid process
Humeral head-epicondyle of humerus

28
Q

Distal attachment of pronator teres

A

Lateral surface of radius (middle of convexity)

29
Q

Innervation of Pronator teres

A

Median nerve

30
Q

Main action of pronator teres

A

Pronates and flexes forearm

31
Q

Main action of flexor carpi radialis

A

Flexion and abduction of the wrist

32
Q

Proximal attachment of flexor carpi radialis

A

Medial epicondyle

33
Q

Distal attachment of flexor carpi radialis

A

Base of 2nd metacarpal

34
Q

Innervation of FCR

A

Median nerve

35
Q

Proximal attachment of Palmaris Longus

A

Medial epicondyle

36
Q

Distal attachment of Palmaris Longus

A

Distal half of flexor retinaculum and apex of palmar aponeurosis

37
Q

Innervation of Palmaris Longus

A

Median nerve

38
Q

Main action of palmaris longus

A

Flexes hand and tenses palmar aponeurosis

39
Q

Whit help of what muscle does Flexor Carpi Ulnaris flexes the wrist

A

Flexor carpi radialis

40
Q

Whit help of what muscle does Flexor Carpi Ulnaris adducts the wrist

A

Extensor Carpi Ulnaris

41
Q

Why is FCU exceptional muscle of anterior compartment

A

The only muscles that is fully innervated by ulnar nerve

42
Q

Proximal attachment of the FCU

A

Medial Epicondyle and Olecranon and posterior border of ulna

43
Q

Distal attachment of FCU

A

Pisiform
Hook of hamate
5th metacarpal

44
Q

Innervation of FCU

A

Ulnar nerve

45
Q

Main action of FCU

A

Flexion and abduction of hand

46
Q

Proximal attachment of pronator quadratus

A

Distal quarter of anterior surface of Ulna

47
Q

Distal attachment of pronator quadratus

A

Distal quarter of anterior surface of radius

48
Q

Innervation of pronator quadratus

A

Anterior interosseous nerve/median nerve

49
Q

Main action of pronator quadratus

A

Pronates forearm
Deep fibers bind ulna and radius together

50
Q

Proximal attachment of Flexor Pollicis Longus

A

Anterior surface of radius
Interosseous membrane

51
Q

Distal attachment of Flexor Pollicis Longus

A

Base of distal phalanx of thumb

52
Q

Innervation of Flexor Pollicis Longus

A

Anterior interosseous nerve
Median nerve

53
Q

Main action of Flexor Pollicis Longus

A

Flexes phalanges ant 1st digit

Moore’s Clinical Anatomy (3 decks)

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