Locomotion and MovementMedium
Question
Which statement is correct for muscle cortraction ?
Options
A.Length of H-zone decrease
B.Length of A-band remains constant
C.Length of I-band increases
D.Length of two Z-line increases
Solution
When Ca+ ions combine with troponin contraction of muscle initiates.
During contraction, the Z-lines come closer together and the sarcomere becomes shorter. The lengthe of A-band remains constant. I-bands shortens and H-zone narrows.
During contraction, the Z-lines come closer together and the sarcomere becomes shorter. The lengthe of A-band remains constant. I-bands shortens and H-zone narrows.
Create a free account to view solution
View Solution FreeMore Locomotion and Movement Questions
Osteoporosis, an age-related disease of skeletal system, may occur due to...Sarcolemma is absent in which muscle :-...The 8th and 9th ribs are known as false ribs because their external portions are attached to...The number of lumbar vertebrae in human vertebral column is...Choose the correct statements regarding muscle contraction.A. A motor neuron carries a signal sent by the Central Nervou...