Each dark A band has a lighter region in its midsection called

SKELETAL MUSCLE

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

A	M line
B	H zone
C	Z disc
D	Z line

Explanation:

Detailed explanation-1: -Thin filaments do not extend all the way into the A bands, leaving a central region of the A band that only contains thick filaments. This central region of the A band looks slightly lighter than the rest of the A band and is called the H zone.

Detailed explanation-2: -Within the A-band is a paler region called the H-zone (from the German “heller", brighter). Named for their lighter appearance under a polarization microscope. H-band is the zone of the thick filaments that has no actin.

Detailed explanation-3: -The H-zone contains only thick filaments. The A-band contains both thick and thin filaments and is the center of the sarcomere that spans the H zone.

There is 1 question to complete.