Match the description:Area defining the beginning and end of myosin

GENERAL PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	H-Zone
B	I-band
C	A-band
D	O-band

Explanation:

Detailed explanation-1: -Z-lines define the boundaries of each sarcomere. The M-line runs down the center of the sarcomere, through the middle of the myosin filaments. The I-band is the region containing only thin filaments. The H-zone contains only thick filaments.

Detailed explanation-2: -The A band is the area in the center of the sarcomere where thick and thin filaments overlap. This gave researchers an idea of myosin’s central location. Within the A band is the H zone, which is the area composed only of thick myosin.

Detailed explanation-3: -The central portion of the A-band is the M-line, which does not contain actin. The figure shows the positioning of the major filament systems that compose the sarcomere: titin, actin (thin), and myosin (thick) filaments.

Detailed explanation-4: -The H zone-the central region of the A zone-contains only thick filaments and is shortened during contraction.

There is 1 question to complete.