The nervoussystem is aninternalcommunicationsystem that sendsshort electricalimpulses. Its maincomponent is thenerves.
Nerves carry information and instructions to and from the brain. The way a nerve works is through a chain of nerve cells that carries a signal (as an electrical impulse) to or from the brain and it is received by the nerve endings of other nerve cells. There are three types of nerves: sensory nerves, motor nerves and mixed nerves.
Theybring information from the eyes, ears and other sense organs to the brain. Motor nerves are the nerves responsible for all voluntary skeletal and somatic movement. Thesenerves contain both motor and sensory fibers.
The longest nerve we have is the tibial nerve. It is 50 cm in adults. We have thousands of nerves distributed among all our body. “pins and needles” The slowest nerves travel at about 1 mps, and the fastest ones travel at 100 mps. Reflex action.
Howis the information transmitted to the body? Which are the three types of nerves? What causes „pins and needles‟? What is the axon‟s role? How do you make your body move?