MCQ
During muscle contraction. What is false ?
- ✓Diameter of fibre increases
- BSize of ‘$H$’ zone becomes smaller
- CSize of ‘$I$’ band decreases
- DSize of ‘$A$’ bands remain the same
✓
Answer
Correct option: A.
Diameter of fibre increases
a
(a) During muscle contraction, both $I$ - band and $H$ - zone progressively shorten and eventually diappear while length of $A$ - band remains constant.
(a) During muscle contraction, both $I$ - band and $H$ - zone progressively shorten and eventually diappear while length of $A$ - band remains constant.
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