The nervous system is a central component of the human body, but most people don't spend much time thinking about it.

The nervous system is the body’s direct communication system. It’s made up of the body’s many ... of the axons and dendrites can vary. The human nervous system is defined as two parts.

Neuroscience examines the structure and function of the human brain and nervous system. Neuroscientists use cellular and molecular biology, anatomy and physiology, human behavior and cognition ...