STANDARDZoology-Muscle Physiology
STANDARD Zoology Skeletal Muscle MCQ Question
Type: MCQ-conceptual-Medium
The dark bands (Black bands) (A-bands) of a skeletal muscle are known as
A
Isotropic bands
B
Anisotropic bands
C
Intercalated disc
D
Cross bridges
Correct Answer
Option B
Detailed Explanation
The dark band or A-band is formed by entire myosin (thick filament) and a small portion of actin (thin filament). During muscle contraction, the length of the A-band remains the same.
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