Autonomous zone of sensory supply by radial nerve is -: (A) 1st dorsal web space, (B) Tip of index finger, (C) Tip of thumb, (D) Tip of little finger
Answer is A. Ans. is 'a' i.e., 1st dorsal web space Autonomous Zone of peripheral nerves:* Radial nerve: 1st dorsal web space of hand (Anatomical snuffbox)* Median nerve: Distal phalanx (tip) of index finger (2nd finger)# Other: Tip of thumb* Ulnar nerve: Distal phalanx (tip) of little finger (5th finger)* Common peroneal nerve/Common fibular nerve/External popliteal nerve/Lateral popliteal nerve: Central strip on dorsum of foot* Deep peroneal nerve: 1st dorsal web space* Posterior tibial nerve: Sole of foot* Sciatic nerve: Mixed pattern of Common peroneal nerve and Posterior tibial nerve