What are the 3 components of the nervous system?

What are the 3 components of the nervous system?

The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body….The nervous system has 3 main functions: sensory, integration, and motor.

• Sensory.
• Integration.
• Motor.

What is the nervous system composed of quizlet?

Composed of the brain and spinal cord, and the thousands of nerves that allow every part of the body to communicate.

Is the nervous system composed of cells?

The nervous system is composed of two basic cell types: glial cells (also known as glia) and neurons. Glial cells, which outnumber neurons ten to one, are traditionally thought to play a supportive role to neurons, both physically and metabolically.

What are the two main parts of the nervous system?

The brain and spinal cord make up the central nervous system. Nerves everywhere else in the body are part of the peripheral nervous system.

What is composed of myelinated axons?

White Matter. A second major component of the CNS is white matter. It is composed mainly of bundles of myelinated axons, with very few neuronal bodies. White matter connects the various grey matter regions of the nervous system to each other and carries nerve impulses between neurons.

What are the 2 parts of the central nervous system?

The nervous system has two main parts:

• The central nervous system is made up of the brain and spinal cord.
• The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

What kind of cell is the nervous system made?

neurons
There are two broad classes of cells in the nervous system: neurons, which process information, and glia, which provide the neurons with mechanical and metabolic support.

What is made of neurons and bundles of axons?

A nerve is an enclosed, cable-like bundle of axons (the projections of neurons) in the peripheral nervous system (PNS). A nerve provides a structured pathway that supports the electrochemical nerve impulses transmitted along each of the axons.

What are the components that make up the brain?

The brain has three main parts: the cerebrum, cerebellum and brainstem.

• Cerebrum: is the largest part of the brain and is composed of right and left hemispheres.
• Cerebellum: is located under the cerebrum.
• Brainstem: acts as a relay center connecting the cerebrum and cerebellum to the spinal cord.

What are the 2 main divisions of peripheral nervous system?

The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system. The somatic nervous system consists of nerves that go to the skin and muscles and is involved in conscious activities.

Which of the following are components of the central nervous system?

Central Nervous System Structure. The CNS has three main components: the brain, the spinal cord, and the neurons (or nerve cells).