This article, which is the second of a six-part series on the nervous system, considers the structure and key functions of the brain, starting with the cerebrum. This article, the second of a series ...

This article discusses how the cranial nerves work as components of the peripheral nervous system; these are special nerves associated with the brain. This is a Self-assessment article and comes with ...

Hormones are a crucial part of the body's signaling system, and the controlled release of these compounds affects tissues around the body. Each of these hormones induces specific responses from these ...

Each part of the nervous system uses internal checks and balances to regulate its activity, responding to various factors like mood, health status, and the external environment.¹ These regulatory ...

The sympathetic nervous system, which helps your heart and other vital organs function all the time, increases activity in response to danger or stress, preparing the body for extra demands. Stress is ...

Researchers demonstrate an artificial neuron made of conductive plastics that can perform advanced functions similar to those ...

Parkinson’s disease is a neurological condition that can affect several areas of the brain. The area it affects the most is known as the substantia nigra, which is involved with movement. Nerve ...

Long after a traumatic event has passed, a person’s nervous system can be reactivated whenever they perceive danger, whether or not danger is present. This feeling of heightened arousal is like being ...