Q. Which muscle band remains unchanged during the contraction and relaxation of the skeletal muscle?
A) I
B) H
C) A
D) E
Explanation
A-band or anisotropic band, which is made up of thick filaments (myosin) remains unchanged during the muscle contraction. Thin fibres slides on thick fibres and causes contraction
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.