Which of the following nerve has the shaded cutaneous territory: (A) Ulnar, (B) Median, (C) Radial, (D) Posterior interosseous
Answer is C. The shaded territory is towards radial aspect of dorsum of hand, thus belonging to radial nerve. CUTANEOUS SUPPLY OF HAND: RADIAL NERVE - Supply 3 1/2 fingers on dorsum of hand excluding nail-beds towards radial side. MEDIAN NERVE - Supply anterior 3 & 1/2 fingers (towards radial side, goes posteriorly and supply nail beds of these fingers ULNAR NERVE - Supply 1 1/2 fingers towards ulnar side (both anterior & posterior) Posterior interosseous nerve supply muscles not skin (only motor and not cutaneous)