Question

How does the Nervous Tissue cause Action?

Answer 1

NERVOUS TISSUE has an ability to generate an electrical impulse in response to stimuli and to rapidly transmit the electrical impulse from the site of the origin along their length in a particular direction.  Neurons are connected to each other and the other parts of the body through synapse and a synapse in the muscle fibre is known as neuromuscular junction. For detail of working of a synapse, refer to the video at the following link and do get back to us for further doubts!

Answer 2

Answer:

When a nerve impulse reaches the muscle the muscle fibre must move. Muscle cells have special proteins that change both their shape and their arrangement in the cell in response to nervous electrical impulses. When this happens new arrangements of these proteins give the muscle cells a shorter form.