This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
Power grip of hand is a function of 
Select and explain. 
A. Long flexors, B. Sho flexors, C. Palmaris brevis, D. Lumbricals
A: Long flexors
Answer: A: Long flexors 
Explanation: Power grip is by extrinsic muscles of hand which originate in the forearm and inse in the hand - Long flexors Precision grip is a function of the intrinsic muscles of hand which originate and inse in the hand. Ref: Gray's Anatomy The Anatomical Basics of Clinical Practice 41 e pg 860.