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Elbow/wrist/hand > Muscles > Flashcards

Muscles Flashcards

0
Q

Abductor pollicis Brevis

A

O:Flexor retinaculum, scaphoid, and trapezium
I:the base of the proximal phalanx of the thumb
N:Median nerve
A:Thumb abduction

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1
Q

Abductor digiti minimi

A

O:pisiform bone
I:Lateral surface of the based of the proximal phalanx the fifth finger
N: Ulnar
A: abduction of fifth finger

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2
Q

Abductor pollicis Longus

A

O:Posterior radius and ulna
I:Base of Metacarpal
N:Radial Nerve
A:Thumb Abduction

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3
Q

Adductor Pollicis

A

O: Trapezium, trapezoid, and metacarpal bones II and III
I: Medial surface of the base of the proximal phalanx of the first finger
N:Ulnar nerve
A: Adduction of the first finger

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4
Q

Anconeus

A

O:Posterior surface of the lateral epicondyle of the humerus
I: Medial surface of the the posterior ulna and olecranon process
N: Radial nerve
A: Assists in elbow extension

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5
Q

Biceps Brachii

A

O: Short head: coracoid process of the scapula
Long head: supraglenoid tubercle
I: Radial tuberosity of the radius and bicipital aponeurosis
N: Musculocutaneous nerve
A: Elbow flexion, supination of the forearm, weak shoulder flexion at the shoulder joint

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6
Q

Brachioradialis

A

O: Supracondylar ridge of the humerus
I: Styloid process of the radius
N: Radial nerve
A: Elbow flexion (especially when the radioulnar joint is in a position midway between supination and pronation)

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7
Q

Dorsal interossei

A

O: Bilaterally on the base of the metacarpals digits I-V
I: Base of the proximal phalanx of digits I-V
N: Ulnar nerve
A: Abduction away from the middle finger

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8
Q

Extensor carpi radialis brevis

A

O: Lateral epicondyle
I: Third metacarpal (posterior surface)
A: Wrist extension
N: Radial nerve

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9
Q

Extensor carpi radialis Longus

A

O: Lateral epicondyle
I: Second metacarpal bone (posterior surface)
A: Wrist extension and radial deviation
N: Radial nerve

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10
Q

Extensor carpi ulnaris

A

O:Lateral epicondyle
I: Fifth metacarpal bone
A: Wrist extension and ulnar deviation
N: Radial Nerve

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11
Q

Extensor digiti minimi

A

O: Lateral epicondyle of the humerus
I: Distal phalanx of digit 5
N: Radial nerve
A: Extension of all joints of digit 5

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12
Q

Extensor digitorum

A

O: Lateral epicondyle of the humerus
I: Digits 2-5 at the bases of the second and third phalanges
N: Radial nerve
A: Finger extension, wrist extension

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13
Q

Extensor indicis

A

O:Distal third of the posterior ulna
I: Distal phalanx of the index finger at the base
N: Radial nerve
A: Extension of the index finger, weak wrist flexion

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14
Q

Extensor pollicis Brevis

A

O:Posterior surface of the distal radius
I: Proximal phalanx of the thumb on the distal side
N: Radial nerve
A: Extension of the thumb at the metacarpal phalangeal joint, weak wrist extension

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15
Q

Extensor pollicis longus

A

O: Posterior lateral surface of the ulna
I: Distal phalanx of the thumb at the base
N: Radial nerve
A: Extension of the thumb, extension of the wrist

16
Q

Flexor carpi radialis

A

O: Medial epicondyle of the humerus
I: Second and third metacarpal bones
A: Wrist flexion and radial deviation
N: Median nerve

17
Q

Flexor carpi ulnaris

A

O: Medial epicondyle of the humerus
I: Pisiform, hamate, and fifth netacarpal bone
A: Wrist flexion and ulnar deviation
N: Ulnar nerve

18
Q

Flexor digiti minimi

A

O: Flexor retinaculum, hamate bone
I: Base of the proximal phalanx of the fifth finger
N: Ulnar nerve
A: Flexion of the fifth finger

19
Q

Flexor digitorum profoundus

A

O: Upper three-fourths of the anterior surface of the ulna and interosseus membrane
I: Digits 2-5 at the base of the distal phalanges
A: Flexion of the distal interphalangeal joint, whole finger flexion, wrist flexion
N:Digits 2 and 3: median nerve; digits 4 and 5: ulnar nerve

20
Q

Flexor digitorum superficialis

A

O: Medial epicondyle of the humerus, coronoid process, radial tuberosity
I: Middle phalanges of digits 2-5
N: Median nerve
A: Finger flexion, assists in wrist flexion, weak elbow flexion

21
Q

Flexor pollicis Brevis

A

O: Flexor retinaculum and trapezium bones
I: The base of the proximal phalanx of the thumb
N: Median nerve
A: Thumb flexion

22
Q

Flexor pollicis Longus

A

O: Anterior surface of the radius on the distal half
I: Distal phalanx of the thumb at the base
N: Median nerve
A: Flexion of the thumb; wrist flexion

23
Q

Lubricalis

A

O: Distal tendon of the flexor digitorum profundus muscle
I: Lateral, proximal base of the proximal phalanx of digits II-V
N: Median and ulnar nerves
A: Flex metacarpophalangeal joints

24
Q

Opponens pollicis

A

O: Flexor retinaculum, trapezium bone
I: The head of the first metacarpal bone
N: Median nerve
A: Thumb opposition

25
Q

Palmar interossei

A

O: Bilaterally on the base of the metacarpals digits I-V
I: Base of the proximal phalanx of digits I-V
N: Ulnar nerve
A: Abduction away from the middle finger

26
Q

Palmaris longus

A

O: Medial epicondyle of the humerus
I: Third metacarpal bone and the palmar aponeurosis
A: Wrist flexion
N: Median nerve

27
Q

Pronator teres

A

O: Medial epicondyle of the humerus and medial side of the ulna
I: Lateral surface of the radius
N: Median nerve
A: Pronation of the forearm, weak elbow flexion

28
Q

Pronator quadratus

A

O: Distal end of the anterior ulna
I: Distal end of the anterior radius
N: Median nerve
A: Pronation of the forearm

29
Q

Supinator

A

O: Lateral epicondyle of the humerus and supinator crest of the ulna
I: Proximal end of the radius on the lateral surface
N: Radial nerve
A: Supination of the forearm

30
Q

Triceps Brachii

A

O: Lateral head: approximately halfway down the humerus on the posterior surface
Long head: infraglenoid tubercle on the lateral border of the scapula
Medial head: distal two-thirds of the posterior and medial humerus
I: All heads insert via a central tendon on the olecranon process of the ulna
N: All heads are innervated by the radial nerve
A: Elbow extension, extension of the shoulder joint (long head only)

Elbow/wrist/hand (1 decks)

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