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Anatomy > Forearm & Hand Muscles > Flashcards

Forearm & Hand Muscles Flashcards

1
Q

Pronator teres

A 
Origin: medial epicondyle
Insertion: radius
Action: pronation of forearm
Innervation: median nerve
Perfusion: ulnar artery
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2
Q

Flexor carpi radialis

A 
Origin: medial epicondyle
Insertion: metacarpals
Action: flexion and abduction of wrist
Innervation: median nerve
Perfusion: ulnar artery
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3
Q

Palmaris longus

A 
Origin: medial epicondyle
Insertion: palmar aponeurosis
Action: flexion of wrist
Innervation: median nerve
Perfusion: ulnar artery
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4
Q

Flexor digitorum superficialis

A

Origin: medial epicondyle
Insertion: middle phalanges (V-insertion)
Action: flexion of wrist and digits (at MCPs and PIPs)
Innervation: median nerve
Perfusion: ulnar artery

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5
Q

Flexor carpi ulnaris

A 
Origin: medial epicondyle
Insertion: metacarpals
Action: flexion and adduction of wrist
Innervation: ulnar nerve
Perfusion: ulnar artery
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6
Q

Flexor digitorum profundus

A

Origin: ulna
Insertion: distal phalanges (through the tunnel)
Action: flexion of wrist and digits (at MCPs, PIPs, and DIPs)
Innervation: median & ulnar nerves
Perfusion: anterior interosseous artery

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7
Q

Flexor pollicis longus

A 
Origin: radius
Insertion: distal phalanx of thumb
Action: flexion of thumb
Innervation: median nerve
Perfusion: anterior interosseous artery
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8
Q

Pronator quadratus

A 
Origin: distal ulna
Insertion: distal radius
Action: pronation of forearm
Innervation: median nerve
Perfusion: anterior interosseous artery
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9
Q

Extensor carpi radialis longus

A 
Origin: supracondylar ridge
Insertion: metacarpals
Action: extension and abduction of wrist
Innervation: radial nerve
Perfusion: radial artery
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10
Q

Extensor carpi radialis brevis

A 
Origin: lateral epicondyle
Insertion: metacarpals
Action: extension and abduction of forearm
Innervation: radial nerve
Perfusion: radial artery
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11
Q

Extensor digitorum

A 
Origin: lateral epicondyle
Insertion: distal phalanges
Action: extension of digits
Innervation: radial nerve
Perfusion: posterior interosseous artery
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12
Q

Extensor digiti minimi

A 
Origin: lateral epicondyle
Insertion: 5th digit
Action: extension of 5th digit
Innervation: radial nerve
Perfusion: posterior interosseous artery
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13
Q

Extensor carpi ulnaris

A 
Origin: lateral epicondyle
Insertion: metacarpals
Action: extension and adduction of wrist
Innervation: radial nerve
Perfusion: posterior interosseous artery
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14
Q

Anconeus

A 
Origin: lateral epicondyle of humerus
Insertion: proximal ulna
Action: extension of forearm
Innervation: radial nerve
Perfusion: interosseous recurrent artery
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15
Q

Supinator

A 
Origin: lateral epicondyle of humerus
Insertion: proximal radius
Action: supination of forearm
Innervation: radial nerve
Perfusion: recurrent interosseous
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16
Q

Extensor indicis

A 
Origin: distal ulna
Insertion: second digit
Action: extension of second digit, helps with extension of wrist
Innervation: radial nerve
Perfusion: posterior interosseous artery
17
Q

Abductor pollicis longus

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
18
Q

Extensor pollicis brevis

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
19
Q

Extensor pollicis longus

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
20
Q

Brachioradialis

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
21
Q

Flexor pollicis brevis

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
22
Q

Abductor pollicis brevis

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
23
Q

Opponens pollicis

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
24
Q

Flexor digiti minimi

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
25
Q

Abductor digiti minimi

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
26
Q

Opponens digiti minimi

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
27
Q

Lumbricals

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
28
Q

Dorsal interossei

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
29
Q

Palmar interossei

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
30
Q

Adductor pollicis

A 
Origin:
Insertion:
Action:
Innervation:
Perfusion:
31
Q

Identify the contents of the carpal tunnel

A

Median nerve
Flexor pollicis longus tendon
Flexor digitorum superficialis tendons (4)
Flexor digitorum profundis tendons (4)

32
Q

Which intrinsic thenar muscle is innervated by the ulnar nerve?

A

Adductor pollicis

Anatomy (11 decks)

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