Skin at the level of umbilicus is supplied by the spinal nerve: (A) T 9, (B) T 10, (C) T 11, (D) T 12
Answer is B. The dermatome T10 is at the level of Umbilicus.The area of skin supplied by a dorsal root of a spinal nerve is called as "Dermatome".They represent specific regions of reception of sensory impulses.Reference: Chaurasia; 6th edition