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 3 main parts of the nervous system and their functions?
- Sensory. …
- Integration. …
- Motor.
What are the three 3 main parts of the nervous system?
- 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 are the major divisions of nervous system?
The nervous system as a whole is divided into two subdivisions:
the central nervous system (CNS) and the peripheral nervous system (PNS)
.
What are the 3 nervous systems?
- 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 is nervous system with diagram?
The Central Nervous System is the integration and command center of the body. It consists of the brain, spinal cord and the retinas of the eyes. The Peripheral Nervous System consists of sensory neurons, ganglia (clusters of neurons) and nerves that connect the central nervous system to arms, hands, legs and feet.
Which organ is part of our 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 is nervous system and its function?
Your nervous system is
your body’s command center
. Originating from your brain, it controls your movements, thoughts and automatic responses to the world around you. It also controls other body systems and processes, such as digestion, breathing and sexual development (puberty).
What is the main function of nervous system?
The nervous system is the major
controlling, regulatory, and communicating system
in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.
What is nervous system classification?
The nervous system can be divided into two major regions: the
central and peripheral nervous systems
. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2).
What are the 6 divisions of the nervous system?
- Cranial nervous system. These are the nerves that connect the brain to the eyes, ears, mouth, and other sensory organs of the head. …
- Peripheral nervous system. …
- Autonomic nervous system. …
- Central nervous system.
What are the 2 main divisions of peripheral nervous system?
The peripheral nervous system itself is divided into two parts:
the somatic nervous system and the autonomic nervous system
. Each of these components plays a critical role in how the peripheral nervous system operates.
What are the 5 main parts of a neuron?
The structure of a neuron: The above image shows the basic structural components of an average neuron, including the
dendrite, cell body, nucleus, Node of Ranvier, myelin sheath, Schwann cell, and axon terminal
.
What is nervous system short answer?
The nervous system is a
body system which sends signals around the body
. It lets animals respond to what is around them. The central nervous system is the brain, the spinal cord, and nerves. It is present in almost all animals. … The brain has billions of nerve cells to help think, walk, and breathe.
How many nervous systems are there?
Structurally, the nervous system has
two components
: the central nervous system and the peripheral nervous system. According to the National Institutes of Health, the central nervous system is made up of the brain, spinal cord and nerves.
What makes up a 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.
