Question

A cheetah on seeing a prey moves towards him at a very high speed. what causes the movement of his muscles?
how does the chemistry of cellular components of muscles change during this event​

Answer 1

Answer:

The changes in proteins

Explanation:-

The muscle cells have special proteins which define the arrangement and shape of the cells.

When the cheetah sees the prey, the eyes (sensory neuron) detects, sends message to brain and then, brain sends an electrical impulse which travels neuron by neuron to the muscles. On reaching the muscle cells, it instructs the proteins to change the shape. This causes the muscles to contract or relax accordingly.

Answer 2

At the axonal end, a chemical called acetylcholine is released by the axonal bulbs in the synapse at the neuromuscular junction.  There are special proteins called actin and myosin which helps in changing the orientation of muscle cells. The continuous contraction and relaxation of muscle lead to movement of muscle causing action.  

Along with the nervous system, the hormonal system also plays a vital role. Adrenaline produced by the adrenal glands triggers the flight or fight action. It increases the blood flow in the muscles for action.