Your nervous system uses billions of tiny, connected nerve cells called neurons to send the messages, which are electrical and chemical signals that tell your body what to do. Your nervous system ...

The diagram summarises how information flows from receptors to effectors in the nervous system. Receptors are groups of specialised cells. They detect a change in the environment and stimulate ...

The tail enables the sperm to swim. The nerve cell is extended, so that nerves can run to and from different parts of the body to the central nervous system. The cell has extensions and branches ...

The answer lies in a membranous structure called myelin ... with each other to perform important tasks in the nervous system. The glial cells support neurons structurally and maintain their ...

Cell death in the nervous system refers to the death of living neurons. Cell death can occur by mechanisms such as apoptosis or programmed cell death, in which death occurs by a characteristic ...