Locomotion and Movement Question 4
4. The H-zone in the skeletal muscle fibre is due to :
[NEET 2013]
(a) The central gap between myosin filaments in the A-band.
(b) The central gap between actin filaments extending through myosin filaments in the A-band
(c) Extension of myosin filaments in the central portion of the A-band.
(d) The absence of myofibrils in the central portion of A-band.
Show Answer
Answer : b
Hints & Solutions
(b) Central part of thick filament, not overlapped by thin filaments is called the ’ $H$ ’ zone. ’ $H$ ’ zone is also called Hensen’s Line.
