The nervous system includes the peripheral nervous system and central nervous system; the peripheral nervous system includes a network of nerves throughout the body, handling everything from regulating the heart rate to flexing the hand or foot. … The central nervous system is made up of the spinal cord and brain.
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.
What is the nervous system function?
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 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 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 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 are examples of nervous system?
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.
Why nervous system is important?
The nervous system plays a role in nearly every aspect of our health and well-being. It guides everyday activities such as waking up; automatic activities such as breathing; and complex processes such as thinking, reading, remembering, and feeling emotions. The nervous system controls: Brain growth and development.
What is nervous system in human body?
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.
What diseases affect the nervous system?
Nervous system diseases
- Alzheimer’s disease. Alzheimer’s disease affects brain function, memory and behaviour. …
- Bell’s palsy. Bell’s palsy is a sudden weakness or paralysis of facial muscles on one side of the face. …
- Cerebral palsy. …
- Epilepsy. …
- Motor neurone disease (MND) …
- Multiple sclerosis (MS) …
- Neurofibromatosis. …
- Parkinson’s disease.
What are the top 3 common nervous system disorders?
- Parkinson’s disease.
- Multiple sclerosis (MS).
- Amyotrophic lateral sclerosis (ALS).
- Alzheimer’s disease.
- Huntington’s disease.
- Peripheral neuropathies.
What organs are in nervous system?
The anatomy of the nervous system in humans consists of the brain and spinal cord, along with the primary sense organs and all the nerves associated with these organs. The brain and the spinal cord form the central nervous system (CNS).
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.
How does the nervous system affect behavior?
The Nervous System and Behavior
Specialized functions, like learning and memory, coordination of movement, and regulation of physiological functions are performed in different regions of the brain, and neural connections within the brain allow the transfer of information among these regions.
What are the characteristics of the nervous system?
Characteristics Of Nervous Tissue
- Nervous tissue makes up for the CNS and PNS of the nervous system.
- Contains two distinct cells – neurons and glial cells.
- It consists of the dendrites, cell body, axon and nerve endings.