What are the two primary parts of the nervous system?

What are the 2 parts of the nervous system?

The nervous system is made up of the central nervous system and the peripheral 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 are the two parts of the nervous system quizlet?

The Nervous System is divided into two parts. What are they? 1) The CNS (Central Nervous System) and 2) The PNS (Peripheral Nervous System.

What are the two main parts of the nervous system and why are they important?

The brain and spinal cord are the organs of the central nervous system. Because they are so vitally important, the brain and spinal cord, located in the dorsal body cavity, are encased in bone for protection. The brain is in the cranial vault, and the spinal cord is in the vertebral canal of the vertebral column.

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What are the two primary cells of the nervous system?

Although the nervous system is very complex, there are only two main types of cells in nerve tissue. The actual nerve cell is the neuron. It is the “conducting” cell that transmits impulses and the structural unit of the nervous system. The other type of cell is neuroglia, or glial, cell.

What are the 3 main parts of the 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 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 the main parts of the nervous system quizlet?

Terms in this set (4)

  • Central Nervous System (CNS) consists of the brain and spinal cord. …
  • Peripheral Nervous System (PNS) the sensory and motor neurons that connect the central nervous system (CNS) to the rest of the body. …
  • somatic division. …
  • autonomic division.

What are the two subdivisions of the autonomic nervous system?

The autonomic nervous system comprises two antagonistic sets of nerves, the sympathetic and parasympathetic nervous systems.

What are the 3 main parts of the nervous system quizlet?

The main parts of the nervous system include the brain, spinal cord, and the peripheral nerves. You just studied 29 terms!

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What is a sympathetic nervous system?

sympathetic nervous system, division of the nervous system that functions to produce localized adjustments (such as sweating as a response to an increase in temperature) and reflex adjustments of the cardiovascular system.

Which nervous system is comprised of the somatic and autonomic nervous systems quizlet?

The peripheral nervous system is divided into the somatic and autonomic nervous systems, and the autonomic nervous system is divided into the sympathetic and parasympathetic nervous systems. The somatic nervous system controls voluntary skeletal muscles.

What is the primary difference between the somatic nervous system and the autonomic nervous system?

The somatic nervous system has sensory and motor pathways, whereas the autonomic nervous system only has motor pathways. The autonomic nervous system controls internal organs and glands, while the somatic nervous system controls muscles and movement.

What are the two primary cells of the nervous system and what do they do quizlet?

There are two main cell types: neurons and neuroglia. The nerve cell known as the “functional unit”. Transmits the impulses of the nervous system.

What is the primary function of a neuron?

Neurons (also called neurones or nerve cells) are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.

Which cells types are not part of the nervous system?

Satellite cells. The satellite cells are the cell types that are not found in the central nervous system. There are four…

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