Question

explain the mechanism of action of the nervous system in relation to the bone and muscular zystem

Answer 1

The nervous system controls various organs of the body including bone and muscular system directly. The brain also receives information from these organs of the body and adjusts signals to these organs to maintain proper functioning. The bones of the skeletal system serve to protect the body's organs, support the weight of the body, and give the body shape, while the the muscles of the muscular system attach to these bones, pulling on them to allow for movement of the body.Skeletal muscles, or the muscles that are used to control bone movement, are all voluntary muscles you can consciously control.The somatic nervous system  is the part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles, the motor cortex allows for the precise voluntary movements of our skeletal muscles

When you want to move, receptors in muscles provide the brain with information about body position and movement.and sent to the brain and spinal cord through the sensory neuron, inside the brain the information is processed, the impulse than travels from the nervous system to the skeletal muscle by the motor neurons, this will trigger a chemical reaction,the chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle, this shortening of the muscle causes muscle contraction,this muscle contraction than causes the movments, when the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.during relaxation the muscles do not contract.

Muscles in the lungs, intestines, bladder, blood vessels, and heart are all involuntary muscles. You have limited control over involuntary muscles, these muscles function without you consciously controlling them.