The H-zone contains only _ filaments.
Correct answer: B. Thick
- A. Thin
- B. Thick
- C. None of these
- D. Z-line
Explanation
The region of a striated muscle fiber that contains only thick (myosin) filaments. The H zone appears as a lighter band in the middle of the dark A band at the center of a sarcomere.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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