This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
Skin at the level of umbilicus is supplied by the spinal nerve 
Select and explain. 
A. T 9, B. T 10, C. T 11, D. T 12
B: T 10
Answer: B: T 10 
Explanation: 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