Question

how do muscle cell move in case of human being

Answer 1

as muscles are attached to our bones by tendons ......
when we try to move our limbs muscle cells provide them support... hope it helps....!!!

Answer 2

Muscles move when the motor nerve attached to it get an impulse which makes the synapse (nerve ending on the muscle) to release a certain chemical on to the muscle cell - this (specific)chemical reacts with specific proteins in the muscle cell which would trigger a movement in the muscle by contracting or releasing the muscle (by fluid motion).

Hope it was helpful...