Frequent question: What does the peripheral nervous system consist of 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 does the peripheral nervous system consist of?

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.

What does the peripheral nervous system consist of and what does it do?

The peripheral nervous system consists of the nerves that branch out from the brain and spinal cord. These nerves form the communication network between the CNS and the body parts. The peripheral nervous system is further subdivided into the somatic nervous system and the autonomic nervous system.

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What are the 4 parts of the peripheral nervous system?

Contents

  • 1.1 Somatic nervous system. 1.1.1 Cervical spinal nerves (C1–C4) 1.1.2 Brachial plexus (C5–T1) 1.1.3 Lumbosacral plexus (L1–Co1)
  • 1.2 Autonomic nervous system. 1.2.1 Sympathetic nervous system. 1.2.2 Parasympathetic nervous system. 1.2.3 Enteric nervous system.

What is the main function of the peripheral nervous system quizlet?

What are the two major functions of the PNS? It’s two major functions are to carry information from the sensory organs and internal organs to the CNS, and to convey information between the CNS and all other parts of the body outside the brain and spinal cord.

What is an example of the peripheral nervous system?

The neurons of the peripheral nervous system do not make complex decisions about the information they carry. … For example, if a mosquito lands on a person’s arm, sensory neurons in the skin send a message to the spinal cord and then the brain, where the message is understood, and a reaction formulated.

What are two components of the peripheral nervous system?

The peripheral nervous system itself is divided into two parts: the somatic nervous system and the autonomic nervous system. Each of these components plays a critical role in how the peripheral nervous system operates.

Which of the following is the best example of the function of the peripheral nervous system?

The best example of the peripheral nervous system is that it connects the central nervous system to the rest of the body. Explanation: The ‘peripheral nervous system’ connects the ‘central nervous system’ to the various organs of the human body and to the limbs and skin.

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Which part of the peripheral nervous system is most important in helping you to walk?

Explanation: Somatic peripheral nervous system is most important in helping you to walk. The somatic nervous system also called a voluntary nervous system and it is the part of the motor nervous system in which motor neurons are present that help in the voluntary movements of the organs and the muscles.

Where is the peripheral nervous system located?

The peripheral nervous system refers to the parts of the nervous system that are outside the central nervous system, that is, those outside the brain and spinal cord.

What are the 2 functions of the peripheral nervous system?

The PNS has three basic functions: (1) conveying motor commands to all voluntary striated muscles in the body; (2) carrying sensory information about the external world and the body to the brain and spinal cord (except visual information: the optic nerves, which convey information from the retina to the brain, are in …

What happens if the peripheral nervous system is damaged?

Peripheral neuropathy, a result of damage to the nerves outside of the brain and spinal cord (peripheral nerves), often causes weakness, numbness and pain, usually in your hands and feet. It can also affect other areas of your body.

How does the peripheral nervous system affect behavior?

The peripheral nervous system includes all of the neurons that sense and communicate data to the central nervous system. The peripheral nervous system can be further divided into the autonomic system, which regulates involuntary actions, and the somatic system, which controls voluntary actions.

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What is the difference between the central and peripheral nervous system quizlet?

the CNS is the control center, brain and spinal cord. The PNS is nerve fibers that carry information to and from the CNS. … grey matter is nerve cell bodies and unmyelinated fibers and is in the outside of brain and inside of the spinal cord.

What is the difference between CNS and PNS?

The central nervous system or the CNS contains the brain and the spinal cord. All together, the brain and the spinal cord serve the nervous system’s command station. … The peripheral nervous system or PNS contains the nerves, which leave the brain and the spinal cord and travel to certain areas of the body.

Which is an example of how the peripheral nervous system helps the body maintain homeostasis?

Which is an example of how the peripheral nervous system helps the body maintain homeostasis? Muscles contract rapidly to produce heat on a cold day.

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