What are the two main components of the nervous system?

What are the two main components of the nervous system?

What Are the Parts of the Nervous System?

• The brain and the spinal cord are the central nervous system.
• The nerves that go through the whole body make up the peripheral nervous system.

What are the major divisions of the nervous system what are their major functions?

There are two major divisions of the nervous system: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is made up of the brain, the spinal cord, and the retina and controls essentially all the functions that keep you alive and allow you to experience life.

What are the main divisions of the nervous system what organs belong to each?

The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2). The brain is contained within the cranial cavity of the skull, and the spinal cord is contained within the vertebral cavity of the vertebral column.

What are the two main components of the nervous system and the brain nervous system and the spinal cord nervous system?

Broadly speaking, the nervous system is organised into two main parts, the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is the processing centre of the body and consists of the brain and the spinal cord. Both of these are protected by three layers of membranes known as meninges.

What are the components of neuron?

A neuron has three main parts: dendrites, an axon, and a cell body or soma (see image below), which can be represented as the branches, roots and trunk of a tree, respectively.

What are the parts and functions of the nervous system?

Parts of the nervous system, the system of the body that oversees the function of all other systems, include its main organ, the brain; its vessels, the spinal cord and peripheral nerves; and its cells, known as neurons, which transmit the electrical signals that are nerve impulses.

What are the three main parts of the central nervous system?

Structure of the Central Nervous System. The CNS is comprised of the brain, brain stem, and spinal cord. The central nervous system: The three major components of the central nervous system: 1) the brain, 2) brain stem, and 3) spinal cord.

What are the elements of nervous system?

ELEMENTS OF NERVOUS SYSTEM Receptors Neurons Effectors

What are two main divisions of the central nervous system?

The nervous system of vertebrates has two main divisions: the central nervous system, consisting of the brain and spinal cord, and the peripheral nervous system, which in humans includes 12 pairs of cranial nerves, 31 pairs of spinal nerves, and the autonomic, or involuntary, nervous system.