Hole’s Essentials of Human Anatomy & Physiology Chapter 09: Nervous System

Nervous System

The complex network of nerve cells and fibers that transmits signals between different parts of the body, controlling functions such as movement, sensation, and cognitive processes. It consists of the central nervous system (brain and spinal cord) and the peripheral nervous system.

Major aspects of the nervous system

Sensory input, integration, and processing and motor output

functions of the nervous system

Thinking,movement,internal processes of physiology

Main cell types in the nervous system

Neuron and glial cells, which facilitate communication and support functions within the nervous system.

Neurons

specialized cells that transmit electrical signals, enabling communication within the nervous system.

Neuroglia

Cells that support, nourish, protect and insulate neurons

Neurotransmitter

Chemical messengers in a synapse that convey an electrical impulse from neuron to another cell

Sensory receptors