What organs make up the peripheral nervous system?

Overview. 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 organs make up 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).

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.

Which of the following make up the peripheral nervous system PNS?

The PNS can be divided into two components: the somatic nervous system and the autonomic nervous system. The somatic nervous system (SNS) and the autonomic nervous system (ANS) are both part of the peripheral nervous system.

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What organs make up the central nervous system quizlet?

What makes up the central nervous system? Consists of the brain and spinal cord, which are protected by the cranium and vertebral column.

Which of the following is the main organ of the 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 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.

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 following are divisions of the peripheral nervous system?

The peripheral nervous system is further subdivided into an afferent (sensory) division and an efferent (motor) division. The afferent or sensory division transmits impulses from peripheral organs to the CNS.

Which of the following is not part of peripheral nervous system?

Which of the following is not a part of peripheral nervous system? Explanation: Peripheral nervous system lies outside the brain and spinal cord. Spinal cord is not a part of peripheral nervous system.

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Are tracts in the CNS or PNS?

In the central nervous system (CNS) bundles of these axons are called tracts, whereas in the peripheral nervous system (PNS) they are called nerves. Each nerve is covered externally by a dense sheath of connective tissue, the epineurium.

What structure found in the peripheral nervous system promotes regeneration of a damaged axon?

Regeneration. Schwann cells are known for their roles in supporting nerve regeneration. Nerves in the PNS consist of many axons myelinated by Schwann cells.