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
Hot water bottle relieves pain of abdominal spasm by 
Select and explain. 
A. Stimulation of touch receptors, B. Stimulation of cholinergic fibers, C. Inhibition of cold receptors, D. Inhibitionof heat receptors
A: Stimulation of touch receptors
Answer: A: Stimulation of touch receptors 
Explanation: The gate control theory of pain asses that non-painful input closes the nerve "gates" to painful input, which prevents pain sensation from traveling to the central nervous system. Gate Control Theory of Pain describes how non-painful sensations can override and reduce painful sensations Ref: guyton and hall textbook of medical physiology 12 edition page number:559,560,561