What defines nervous system?
A nervous system can be defined as an organized group of cells, called neurons, specialized for the conduction of an impulse—an excited state—from a sensory receptor through a nerve network to an effector, the site at which the response occurs.
What nervous system includes brain?
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.
Are there nerves in the brain?
Your cranial nerves are pairs of nerves that connect your brain to different parts of your head, neck, and trunk. There are 12 of them, each named for their function or structure. Each nerve also has a corresponding Roman numeral between I and XII.
What is the function of the brain?
The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body. Together, the brain and spinal cord that extends from it make up the central nervous system, or CNS.
What part of the brain controls the nerve system?
The brain stem connects the cerebrum with the spinal cord. It contains a system of nerve cells and fibers (called the reticular activating system) located deep within the upper part of the brain stem. This system controls levels of consciousness and alertness.
What are the basic components of the nervous system?
The nervous system is divided into two basic components: the central nervous system (CNS), and the peripheral nervous system (PNS). the following are the basic components of the human nervous system. The central nervous system: The CNS consists of the brain and the spinal cord.
Does your nervous system includes your brain nerves and spine?
Your nervous system is made up of your brain, your spinal cord and all of the nerves in your body. It sends messages back and forth between your brain and the rest of your body to communicate important signals.
What is the role of nervous tissue in the brain?
Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. It stimulates muscle contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning.