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Anatomy > Muscles of the Anterior forearm > Flashcards

Muscles of the Anterior forearm Flashcards

1
Q

What are the 3 layers of muscle in the forearm?

A

Superficial
Intermediate
Deep

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2
Q

What is the general action of muscles in the anterior forearm?

A

Flexion at wrist
Flexion at fingers
Pronation

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3
Q

What are the 4 suoerficial muscles in the anterior forearm?

A

Pronator teres
Flexor carpi radialis
Palmaris Longua
Flexor carpi ulnaris

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4
Q

What is important about the 4 superficial muscles in the anterior forearm?

A

The all have a common tendon that originates at the medial epichondyle

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5
Q

What is the main action of flexor carpi ulnaris?

A

Flexion at the wrist

Adduction at the wrist

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6
Q

What nerve innervates the flexor carpi ulnaris?

A

The ulnar nerve

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7
Q

What lies directly underneath the Palmaris longus at the wrist?

A

The median nerve

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8
Q

What innervates the Palmaris longus?

A

The median nerve

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9
Q

What is the main action of the Palmaris longus?

A

Flexion at the wrist

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10
Q

What is the main action of Flexor carpi radialis?

A

Abduction at the wrist

Flexion at the wrist

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11
Q

What nerve innervates the Flexor carpi radialis?

A

The median nerve

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12
Q

What is the main action of Pronator teres?

A

Pronation of the forearm

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13
Q

What nerve innervates Pronator teres?

A

The median nerve

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14
Q

What is the intermediate muscle in the forearm?

A

Flexor digitorum superficialis

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15
Q

What is special about the Flexor digitorum superficialis?

A

It has 2 heads, the median nerve and Ulnar artery passes through these

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16
Q

What is the main action of Flexor digitorum superficialis?

A

Flexes at the wrist
Flexes metacarpophalangeal joint
Flexes proximal interphalangeal joint

17
Q

What innervates the Flexor digitorum superficialis?

A

The median nerve

18
Q

What are the 3 muscles in the deep layer of the anterior forearm?

A

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

19
Q

What is the main action of the Flexor digitorum profundus?

A

Flex distal interphalangeal joint
Flex metacarpophalangeal joint
Flex at the wrist

20
Q

What innervates the Flexor digitorum profundus?

A

Medial half - Ulnar nerve

Lateral half - Median nerve

21
Q

Where is Flexor pollicis longus in relation to Flexor digitorum profundus?

A

Laterally

22
Q

What is the main action of Flexor pollicis longus?

A

Flex interphalangeal joint of the thumb

Flex Metacarpophalangeal joint of the thumb

23
Q

What innervates Flexor pollicis longus?

A

Median nerve

24
Q

Where is Pronator quadratus in relation to Flexor pollicis longus and Flexor digitorum profundus?

A

Deep

25
Q

What is the main action of Pronator quadratus?

A

Pronation of the forearm

26
Q

What innervates Pronator quadratus?

A

The median nerve

Anatomy (45 decks)

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