Quick Answer: What Is The Purpose Structure And Function Of The Central Nervous System?

What are the main structures of the CNS?

The CNS consists of the two major structures: the brain and spinal cord.

The brain is encased in the skull, and protected by the cranium..

What is the structure and function unit of nervous system?

These include nerve cells (or neurons) and glial cells (or glia). Neurons are the basic functional units of the nervous system, and they generate electrical signals called action potentials, which allow them to quickly transmit information over long distances.

What are the 3 nervous systems?

The nervous system comprises the central nervous system, consisting of the brain and spinal cord, and the peripheral nervous system, consisting of the cranial, spinal, and peripheral nerves, together with their motor and sensory endings.

What are the 3 major functions of the spinal cord?

What does the spinal cord do?Motor Functions – directs your body’s voluntary muscle movements.Sensory Functions – monitors sensation of touch, pressure, temperature and pain.Autonomic Functions – regulates digestion, urination, body temperature, heart rate, and dilation/contraction of blood vessels (blood pressure).

What is the main function of the central nervous system Brainly?

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 three 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 the main function of the central nervous system quizlet?

The main functions of the central nervous system is to PROCESS information received through sensory systems and other parts of the body and to activate appropriate actions to the external/internal stimuli.

What are the 4 main 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 is the main function of the human nervous system?

The nervous system is involved in receiving information about the environment around us (sensation) and generating responses to that information (motor responses). The nervous system can be divided into regions that are responsible for sensation (sensory functions) and for the response (motor functions).

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 are the three main functions of a nervous system quizlet?

Terms in this set (3)sensory input. when sensory receptors monitor changes that occur both inside and outside of the body.integration. when sensory information is interpreted and the appropriate response is taken.motor output. response that is performed by effectors- muscles or glands.

What are the basic elements of the 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 is the function of human nervous system?

Human nervous system, system that conducts stimuli from sensory receptors to the brain and spinal cord and conducts impulses back to other parts of the body.

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.

What are the different parts of nervous system and its function?

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 importance of myelin sheath?

Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells. If myelin is damaged, these impulses slow down.