What is 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 3 functions of the central nervous system?
The CNS is comprised of the brain, cerebellum and spinal cord. Remaining neurons, and associated cells, distributed throughout the body form the PNS. The nervous system has three broad functions: sensory input, information processing, and motor output.
What is the function of the nervous system?
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 are the four functions of the CNS?
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 structure and 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 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 main organ of the 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 the most important part of the nervous system?
The brain and the spinal cord make up the central nervous system. The nervous system is the most complex and highly organized body system. It receives information from the sensory organs via nerves, transmits the information through the spinal cord, and processes it in the brain.
What is an example of the central nervous system?
The central nervous system consists of the brain, the brainstem, and the spinal cord. The peripheral nervous system includes the cranial nerves, the spinal nerves, the sympathetic nervous system, and the parasympathetic nervous system. … The spinal cord is continuous with the brain and lies caudally to it.
What are the six main structures of the central nervous system?
We will look at the types of cells involved, different regions within the brain, spinal circuitry, and how the CNS can be affected by disease and injury.
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- Cervical spinal nerves. C1 spinal nerve. …
- Thoracic spinal nerves. T1 spinal nerve. …
- Lumbar spinal nerves. L1 spinal nerve. …
- Sacral spinal nerves. …
- Cauda equina.
What are the main structures of 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).