PHYSIOLOGY
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This area of a sarcomere contains only thick filaments
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M line
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A band
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I band
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Z line
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Explanation:
Detailed explanation-1: -Each sarcomere consists of a central A-band (thick filaments) and two halves of the I-band (thin filaments ). The I-band from two adjacent sarcomeres meets at the Z-line. The central portion of the A-band is the M-line, which does not contain actin.
Detailed explanation-2: -The I-and H-bands are areas where thick and thin filaments do not overlap (this is why these bands appear paler under the microscope). The I-band exclusively contains thin filaments whereas the H-band contains exclusively thick filaments.
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