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Human Anatomy (DO 1) > Forearm compartments and innervation > Flashcards

Forearm compartments and innervation Flashcards

1
Q

Superficial Posterior Forearm Muscles

A

(Extensors)

Brachioradialis 
Extensor carpi radialis longus 
Extensor carpi radialis brevis 
Extensor digitorum 
Extensor digiti minimi 
Extensor carpi ulnaris
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2
Q

Deep posterior Forearm muscles

A 
Supinator 
Extensor indicis 
Extensor pollicis longus 
Extensor Pollicis Brevis 
Abductor Pollicis longus
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3
Q

General innervation trend of the posterior forearm

A

All innervated by Radial nerve and its branches

Brachialis and ECRL = Radial
Supinator and ECRB = Deep Radial
All others = Posterior interosseous nerve

** remember Deep radial becomes the posterior interosseous after it comes through the supinator

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4
Q

What innervates the Brachioradialis

A

Radial Nerve

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5
Q

What innervates Extensor Carpi Radialis Longus

A

Radial Nerve

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6
Q

What innervates Extensor Carpi Radialis Brevis

A

Deep Radial Nerve

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7
Q

What innervates Extensor Digitorum

A

Posterior Interosseous Nerve

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8
Q

What innervates Extensor carpi ulnaris

A

Posterior Interosseous Nerve

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9
Q

What innervates Supinator

A

Deep Radial

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10
Q

What innervates Extensor indicies

A

Posterior Interosseous

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11
Q

What innervates Extensor Pollicis longus

A

Posterior interosseous nerve

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12
Q

What innervates Extensor Pollicis brevis

A

Posterior interosseous nerve

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13
Q

Superficial muscles of the anterior forearm

A 
Pronator teres
Flexor carpi radialis 
Palmaris longus 
Flexor carpi ulnaris 
Flexor digitorum superficialis
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14
Q

Intermediate muscles of anterior forearm

A

Flexor digitorum profundus

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15
Q

Deep muscles of anterior forearm

A

Flexor pollicis longus

Pronator quadratus

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16
Q

General innervation trent fro anterior forearm

A

all innervated by median nerve

EXCEPT: flexor carpi ulnaris = ulnar nerve
Flexor Digitorum Profundus = M & Ulnar

17
Q

what innervates pronator teres

A

median nerve

18
Q

what innervates flexor carpi radialis

A

median nerve

19
Q

what innervates palmaris longus

A

median nerve

20
Q

what innervates flexor carpi ulnaris

A

ulnar nerve

21
Q

what innervates flexor digitorum superficialis

A

median nerve

22
Q

what innervates flexor digitorum profundus

A

median nerve AND ulnar nerve

23
Q

What innervates flexor pollicis longus

A

median nerve

24
Q

what innervates pronator quadratus

A

median nerve

25
Q

what nerve passes through the heads of pronator teres

A

median nerve

26
Q

which flexor muscle is responsible for adduction of the wrist?

A

Flexor carpi ulnaris

27
Q

what is the action of dorsal interossei muscle

A

abduction

“PAD, DAB”

28
Q

what is the action of palmar interossei muscles

A

adduction

“PAD, DAB”

29
Q

which joint does the flexor digitorum superficialis NOT flex

30
Q

which forearm extensor does not originate from the common extensor tendon?

A

Extensor Carpi Radialis longus

Human Anatomy (DO 1) (13 decks)

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