EVERYDAY SCIENCE

Detailed explanation-1: -Sensory neurons are activated by a stimulus, which is sent to the central nervous system, and a motor response is sent out to the skeletal muscles that control this movement.

Detailed explanation-2: -The neurons that carry these messages to the muscles are called motor neurons.

Detailed explanation-3: -The crossed extensor reflex is a contralateral reflex that allows the body to compensate on one side for a stimulus on the other. For example, when one foot steps on a nail, the crossed extensor reflex shifts the body’s weight onto the other foot, protecting and withdrawing the foot on the nail.

Detailed explanation-4: -Sensing pain: A relay from stubbed toe to brain In your body, there are special sensory neurons called ‘nociceptors’ whose job it is to tell the body “this feels bad!” [Dubin 2010].

Detailed explanation-5: -Neurons are fragile and can be damaged by pressure, stretching, or cutting. An injury to a neuron can stop the signals transmitted to and from the brain, causing muscles to not work properly or a loss of feeling in an injured area. Nerve injuries can impact the brain, the spinal cord, and peripheral nerves.