Median nerve Flashcards Preview

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Flashcards in Median nerve Deck (11):
1

What is the motor function of the Median nerve?

Innervates the flexor muscles of the anterior compartment (except the flexor carpi ulnaris and flexor digitorum profundus)
Thenar muscles
Lateral 2 lumbricals

2

What is the sensory function of the Median nerve?

Lateral part of the palm (Palmar cutaneous branch)
Lateral 3 and a half fingers on the anterior surface of the hand (Digital cutaneous branch)

3

What branches off the Median nerve?

Palmar cutaneous branch
Digital cutaneous branch

4

What spinal roots are in the Median nerve?

C5, C6, C7, C8 and T1

5

What muscles are innervated by the Median nerve?

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor digitorum superficialis
Flexor digitorum,profundus
Flexor pollicis longus
Pronator quadratus
Lateral 2 Lumbricals
Thenar muscles

6

What are the 2 sensory branches of the Median nerve?

Palmar cutaneous branch
Digital cutaneous branch

7

What does the Palmar cutaneous branch of the Median nerve do?

Provides sensation to the palm

8

What does the Digital cutaneous branch of the Median nerve do?

Lateral 3 and a half digits on the palmar side
Fingertips on the dorsal side

9

When can Hand of Benediction occur?

Damage to the Median nerve at the elbow/wrist

10

How can the Median nerve be damaged at the elbow?

A supraepichondylar fracture of the humerus

11

How can the Median nerve be damaged at the wrist?

Lacerations just below the flexor reticaculum