Question

explain how muscles change their shape? class 10 biology - control and coordination lesson

Answer 1

Muscles have the ability to adapt to external forces, and when placed under high demand, they generate great strength and power and maintain durability. To accomplish this feat, muscles can change their shape, size, and consistency. You can see these muscular changes in the sculpted physiques of athletes and bodybuilders. As they place greater demand on the muscles, the size and shape of the muscle changes in response to the demand load. And although muscle changes aren't outwardly noticeable in most people, your muscles are constantly altering their size, shape, and consistency in response to your daily activities too. Movement helps muscles maintain their elasticity, and the lack of movement causes muscles to develop some rigidity. From their very smallest component to their largest bulky mass, muscles work in unison to expand and contract. As muscle fibers change their size and shape, they glide over the surrounding fibers. The result is a living woven fabric capable of changing its size, shape, and strength depending on the demands of the moment.

Answer 2

Answer:

when there is needed to control and co-ordinate the brain sensor signal to the muscles and is the signal richest to muscles the muscle fibre move.

10 English solution of moment at cellular level is that muscle will move by changing their shape so that they shorten.

so here is the question we are asked to that how do muscles change their shape?

muscle cells have special proteins that change both their shape and their arrangement in the cell in response to narrows electrical impulse when this happens new arrangement of this 14 give the muscle cells a shorter form