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Limbs Anatomy (own flashcards) > Forearm and wrist > Flashcards

Forearm and wrist Flashcards

1
Q

Pronator teres - attachments

A

Proximal: Humeral head - medial epicondyle
Ulnar head - coronoid process

Distal: Middle of lateral radial surface

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2
Q

Pronator teres - innervations

A

Median nerve (C6,C7)

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3
Q

Pronator teres - action

A

Pronation

Weak flexion of forearm at elbow

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4
Q

Pronator quadratus - attachments

A

Proximal: Distal anterior surface of ulna

Distal: Distally on anterior surface of radius

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5
Q

Pronator quadratus - innervation

A

Median nerve (C8, T1)

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6
Q

Pronator quadratus - action

A

Pronation of the hand

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7
Q

Flexor carpii radialis - attachments

A

Proximal: Medial epicondyle

Distal: Base of 2nd and 3rd metacarpal

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8
Q

Flexor carpii radialis - innervation

A

Median nerve (C6, C7)

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9
Q

Flexor carpii radialis - action

A

Flexion of hand at wrist

Wrist abduction

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10
Q

Palmaris longus - attachments

A

Proximal: Medial epicondyle

Distal: Palmar aponeurosis

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11
Q

Palmaris longus - innervation

A

Median nerve (C6, C7)

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12
Q

Palmaris longus - action

A

Flexes hand at wrist and tightens palmar aponeurosis

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13
Q

Flexor carpii ulnaris - attachments

A

Proximal: Humeral head - Medial epicondyle
Ulnar head - medial margin of olecranon and posterior border of ulna

Distal: Pisiform bone and extension of its ligament attaches to hook of hamate and base of 5th metacarpal

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14
Q

Flexor carpii ulnaris - innervation

A

Ulnar nerve (C7, C8)

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15
Q

Flexor carpii ulnaris - action

A

Flexion and adduction of hand at wrist

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16
Q

Flexor digitorum superficialis - attachments

A

Proximal: Humero-ulnar head - medial epicondyle, ulnar collateral ligament, coronoid process of ulna
Radial head - superior half of anterior aspect of radius

Distal: four tendons of insertion attach to bodies of middle phalanges of medial 4 digits

17
Q

Flexor digitorum superficialis - innervation

A

Median nerve (C6, C7, T1)

18
Q

Flexor digitorum superficialis - action

A

Flexion of proximal interphalangeal joints

Contributes to flexion of all joints it crosses (elbow, wrist, metacarpophalangeal)

19
Q

Flexor digitorum profundus - attachments

A

Proximal: Proximal part of medial and anterior aspect of ulna and interosseous membrane

Distal: Four tendons attach to bases of distal phalanges of medial 4 digits

20
Q

Flexor digitorum profundus - innervation

A

Muscle divides into two parts proximal to wrist

Medial part - ulnar nerve (C8, T1)

Lateral part - median nerve (C8, T1)

21
Q

Flexor digitorum profundus - action

A

Flexion of distal interphalangeal joints

Also produces some flexion at proximal interphalangeal joints, metacarpophalangeal joints and wrist

22
Q

Flexor pollicis longus - attachments

A

Proximal: Anterior aspect of radius and interosseous membrane

Distal: Base of distal phalanx of thumb

23
Q

Flexor pollicis longus - innervation

A

Median nerve (C7, C8 and T1)

24
Q

Flexor pollicis longus - action

A

Flexion of distal phalanx of the thumb

2o action - flexion of proximal phalanx

25
Q

Supinator - attachments

A

Proximal: Lateral epicondyle, radial collateral ligament, anular ligament, supinator fossa, crest of ulna

Distal: Lateral, posterior and anterior surfaces of proximal third of radius

26
Q

Supinator - innervation

A

Radial nerve (C5, C6) - Deep branch

27
Q

Supinator - action

A

Supination of the forearm

28
Q

Brachioradialis - attachments

A

Proximal: Lateral supracondylar ridge of humerus

Distal: Laterally onto distal radius

29
Q

Brachioradialis - innervation

A

Radial nerve (C5, C6)

30
Q

Brachioradialis - action

A

Accessory flexor of forearm at elbow

31
Q

Extensor carpii radialis longus - attachments

A

Proximal: Lateral supracondylar ridge of the humerus

Distal: Base of 2nd metacarpal

32
Q

Extensor carpii radialis longus - innervation

A

Radial nerve (C6, C7)

33
Q

Extensor carpii radialis longus - action

A

Extensions and abduction of the hand at the wrist joint

Limbs Anatomy (own flashcards) (3 decks)

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