PG NEXT Question of the Day 27-10-2016

Question:

Nerve supply of the area shown in the photograph is 
a. Superficial part of radial nerve
b. Deep branch of radial nerve
c. Median nerve
d. Ulnar nerve




Ans: c. Median nerve

Ref: Moore, clinically oriented Anatomy, 7th edition, page – 785

Explanation:



Nerve supply of digits:

Palmar surface
o Lateral 3 ½ digits including the distal half of their dorsum, skin of central palm – median nerve & its cutaneous branch
o Medial 1 ½ digits & skin of medial palm – ulnar nerve & its cutaneous branch

Dorsal surface
o Lateral 3 ½ digits excluding their distal half & skin of lateral half of dorsum – superficial branch of radial nerve
o Medial 1 ½ digits & skin of medial aspect of dorsum – ulnar nerve & its cutaneous branch

So the tip of index finger is innervated by median nerve




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