What is found in the peripheral nervous system?

The peripheral nervous system refers to parts of the nervous system outside the brain and spinal cord. It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions. … It is distributed throughout the central and peripheral nervous systems.

What are the 3 parts of the peripheral nervous system?

The Peripheral Nervous System (PNS)

  • Autonomic nervous system (ANS): Controls involuntary bodily functions and regulates glands.
  • Somatic nervous system (SNS): Controls muscle movement and relays information from ears, eyes and skin to the central nervous system.

What is the peripheral nervous system made up of?

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.

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What cells are found in the peripheral nervous system?

The two types of neuroglia found in the peripheral nervous system are satellite cells and Schwann cells. Neurons are the other the other type of cell that comprise nervous tissue. Neurons have cell bodies, dendrites, and axons.

What are the four main divisions of the peripheral nervous system?

The peripheral nervous system is subdivided into nerves, the autonomic system, and the somatic system. The autonomic nervous system is further subdivided into the parasympathetic and sympathetic nervous systems. The enteric nervous system is an independent subsystem of the peripheral nervous system.

Are there neurons in the peripheral nervous system?

As with the central nervous system, the basic cell units of the peripheral central nervous system are neurons. Each neuron has a long process, known as the axon, which transmits the electrochemical signals through which neurons communicate.

Which kinds of nerves are found in the peripheral nervous system quizlet?

The peripheral nervous system includes the cranial nerves (connected to brain innervate the head), spinal nerves (connected to spinal cord innervates the rest of the body), and ganglia (collections of neuron cell bodies in the PNS). You just studied 7 terms!

What is an example of the peripheral nervous system?

Examples of the Peripheral Nervous System Response

When a bright light is suddenly turned on, sensory receptors in the eye communicate this to the CNS. The PNS mediates the response to this stimulus. The pupils contract and the external eye muscles squint.

Which of the Neuroglial cell types shown are found in the peripheral nervous system PNS?

Schwann cells are found in the PNS only. Both oligodendrocytes and Schwann cells wrap around axons of neurons forming myelin sheaths. Both astrocytes and satellite cells protect cell bodies from chemicals found in other tissues such as the blood.

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Which of the following neuroglia are found in the PNS?

The PNS has two kinds of neuroglia: schwann cells and satellite cells. Schwann cells provide myelination to peripheral neurons.

Which two types of neuroglia are found only in the peripheral nervous system?

There are two types of neuroglia found within the peripheral nervous system:

  • Schwann cells – myelinate axons in the peripheral nervous system.
  • Satellite cells – regulate nutrient and neurotransmitter levels around neurons in ganglia.

What are two components of the peripheral nervous system?

The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system. The somatic nervous system consists of nerves that go to the skin and muscles and is involved in conscious activities.