What Are The Main Structures Of The Central Nervous System?

What are the 3 main structures 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..

What is the basic function of the central nervous system?

The central nervous system CNS is responsible for integrating sensory information and responding accordingly. It consists of two main components: The spinal cord serves as a conduit for signals between the brain and the rest of the body. It also controls simple musculoskeletal reflexes without input from the brain.

What are the two major divisions of the nervous system?

Let’s start with a simple division: The nervous system is divided into the central nervous system and peripheral nervous system. Let’s break the central nervous system and the peripheral nervous system into more parts.

What is central nervous system dysfunction?

Central nervous system (CNS) dysfunctions are caused by disease or trauma; they are diverse, frequently severe, and nondiscriminatory in affecting the world׳s population. Traumatic injuries such as brain injury and spinal cord injury severely and immediately affect a person׳s physical and/or cognitive abilities.

What are the six main structures of the central nervous system?

These include structures such as the frontal and temporal lobes, the thalamus, the cerebellum, the putamen, mamillary bodies and fornix, and a convolution above the corpus callosum known as the cingulate gyrus.

What structures of the nervous system are in 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).

What is nervous system and its types?

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 is the structure and function of the central nervous system?

The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.

What are the four functions of the nervous system?

The four main functions of the nervous system are:Control of body’s internal environment to maintain ‘homeostasis’ An example of this is the regulation of body temperature. … Programming of spinal cord reflexes. An example of this is the stretch reflex. … Memory and learning. … Voluntary control of movement.

What are the four major parts of the central nervous system?

Share on Pinterest The CNS is the brain and spinal cord. The CNS consists of the brain and spinal cord. The brain is protected by the skull (the cranial cavity) and the spinal cord travels from the back of the brain, down the center of the spine, stopping in the lumbar region of the lower back.

What happens if the central nervous system is damaged?

You may experience the sudden onset of one or more symptoms, such as: Numbness, tingling, weakness, or inability to move a part or all of one side of the body (paralysis). Dimness, blurring, double vision, or loss of vision in one or both eyes. Loss of speech, trouble talking, or trouble understanding speech.

Why is the nervous system most important?

The nervous system helps all the parts of the body to communicate with each other. It also reacts to changes both outside and inside the body. The nervous system uses both electrical and chemical means to send and receive messages.

What are the four major components of the central nervous system?

Contents1.1 White and gray matter.1.2 Spinal cord. 1.2.1 Cranial nerves.1.3 Brain. 1.3.1 Brainstem. 1.3.2 Cerebellum. 1.3.3 Diencephalon. 1.3.4 Cerebrum.1.4 Difference from the peripheral nervous system.

What part of the brain controls the central nervous system?

The cerebellum — also called the “little brain” because it looks like a small version of the cerebrum — is responsible for balance, movement, and coordination. The pons and the medulla, along with the midbrain, are often called the brainstem. The brainstem takes in, sends out, and coordinates the brain’s messages.

How many nervous systems are there?

The nervous system has two parts, called the central nervous system and the peripheral nervous system due to their location in the body. The central nervous system (CNS) includes the nerves in the brain and spinal cord.

What are the 3 functions of the central nervous system?

The nervous system has three broad functions: sensory input, information processing, and motor output. In the PNS, sensory receptor neurons respond to physical stimuli in our environment, like touch or temperature, and send signals that inform the CNS of the state of the body and the external environment.

What is nervous system short answer?

The nervous system is a system in the body which sends signals around the body. It lets people and animals respond to what is around them. The central nervous system is the brain, the spinal cord, and nerves. It is present in most animals. … The brain has billions of nerve cells to help think, walk, and breathe.

What is the nervous system simple definition?

The nervous system controls everything you do, including breathing, walking, thinking, and feeling. This system is made up of your brain, spinal cord, and all the nerves of your body. … The nerves carry the messages to and from the body, so the brain can interpret them and take action.