What are the major divisions of the nervous system and their functions?

What are the major divisions of the nervous system and what are their major functions?

There are two major divisions of the nervous system: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is made up of the brain, the spinal cord, and the retina and controls essentially all the functions that keep you alive and allow you to experience life.

What are the major divisions of the nervous system what are their major functions quizlet?

The structures of the nervous system are described in terms of 2 principal divisions-the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS (brain and spinal cord) interprets incoming sensory information and issues instructions based on past experience.

What are the 3 main divisions of the nervous system?

divisions of the nervous system

  • Central Nervous System.
  • Peripheral Nervous System.
  • Divisions of the Nervous System.
  • Brain Structures.
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What are all the divisions of the nervous system?

The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS).

What are the 5 main parts 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.

Nervous Tissue

  • Afferent neurons. …
  • Efferent neurons. …
  • Interneurons.

What is sympathetic and parasympathetic?

The autonomic nervous system comprises two parts- the sympathetic and parasympathetic nervous system. The sympathetic nervous system activates the fight or flight response during a threat or perceived danger, and the parasympathetic nervous system restores the body to a state of calm.

What are 2 major divisions 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.

Which are two major divisions of the peripheral nervous system?

The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system.

What are 2 divisions of the autonomic nervous system?

Structure and Function

  • Sympathetic Nervous System.
  • Parasympathetic Nervous System.
  • Enteric Nervous System (ENS)

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.
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What is the main function of the nervous system?

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.