This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
Appreciation of shape and size of an object placed in the hand is lost in the lesion of 
Select and explain. 
A. Tractus gracilis, B. Tractus cuneatus, C. Lateral spinathalamic tract, D. Spino - reticular tract
B: Tractus cuneatus
Answer: B: Tractus cuneatus 
Explanation: Ans. (b) Tractus cuneatus(Ref: Ganong, 25th ed/p.168)Appreciation of shape and size of an object placed in the hand is a function of Tractus cuneatus