This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
The umbilicus is supplied by which spinal segment? 
Select and explain. 
A. T4, B. T6, C. T8, D. T10
D: T10
Answer: D: T10 
Explanation: ■ The skin around umbilicus is supplied by T10 segment of cord.
■ With reference to lymphatics and venous drainage, it is the watershed area. Educational point:
■ Dermatomes over:
-  The xiphoid process-T7
-  The umbilicus-T10
-  The pubis-L1
■ The remnant of the vitello-intestinal duct may form a tumor of umbilicus known as raspberry /cherry red tumor.