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

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 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 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 nervous system English?

The nervous system is a complex network of nerves and cells that carry messages to and from the brain and spinal cord to various parts of the body. … The Central nervous system is made up of the brain and spinal cord and The Peripheral nervous system is made up of the Somatic and the Autonomic nervous systems.

What is nervous system detail?

The nervous system is the part of an animal’s body that coordinates its behavior and transmits signals between different body areas. In vertebrates it consists of two main parts, called the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord.

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.

How is nervous system damaged?

Injuries (trauma), especially injuries to the head and spinal cord. Problems that are present at birth (congenital). Mental health problems, such as anxiety disorders, depression, or psychosis. Exposure to toxins, such as carbon monoxide, arsenic, or lead.

What are the 3 major organs of the nervous system?

The nervous system in a human is made of the brain, spinal cord, sensory organs and all the neurons that serve as communication channels between the various organs of the body.

How does human nervous system work?

The nervous system takes in information through our senses, processes the information and triggers reactions, such as making your muscles move or causing you to feel pain. For example, if you touch a hot plate, you reflexively pull back your hand and your nerves simultaneously send pain signals to your brain.

What are the major structures and functions 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. Together, these organs are responsible for the control of the body and communication among its parts.

What is the structure of the nervous system?

The central nervous system contains the Brain and the Spinal cord, therefore neurons outside of the brain and spinal cord such as motor neurons or sensory neurons that extend to the rest of the body are considered the peripheral neurons.

What is the function of the 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 are 3 functions of 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 brain?

The CNS consists of the brain and spinal cord. The brain is an important organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger, and every process that regulates our body.

What are the 4 types of nerves?

What are the types of nerves in the body?Autonomic nerves. These nerves control the involuntary or partially voluntary activities of your body, including heart rate, blood pressure, digestion, and temperature regulation.Motor nerves. … Sensory nerves.