Compare and contrast the CNS and the PNS - Quizlet.

Central Nervous System Essay. The central nervous system (CNS) is that portion of the vertebrae nervous system that is composed of the brain and spinal cord. Together with the peripheral nervous system (PNS), the other major portion of the nervous system, the CNS coordinates the body's interaction with the environment. The CNS is contained.

The brain stem and spinal cord both control involuntary processes (e.g. the brain stem controls breathing and the spinal cord controls involuntary reflexes). The sympathetic nervous system (part of the autonomic nervous system) and the somatic nervous system respond to external stimuli. The.

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Start studying compare and contrast CNS and PNS. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

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The peripheral nervous system (PNS) and the central nervous system (CNS) are similar because they both consist of neurons and axons. The differences lie in the anatomy of the neurons and axons. The CNS has sets of neurons called nuclei (singular nucleus) and bundles of axons are called tracts. The PNS has sets of neurons called ganglia.

Somatic motor and sensory neurons that give rise to peripheral nervous system (PNS) axons maintain large fractions of their total protoplasmic bulk within the central nervous system (CNS). Extracellular matrix components involved in the guidance of CNS development are employed for the same purpose in the PNS. PNS microglia-like cells, as microglia in the CNS, are bone marrow-derived and have a.

The role of the peripheral nervous system (PNS) is to relay messages (nerve impulses) from the CNS (brain and spinal cord) to the rest of the body. The PNS consists of two main components: The somatic nervous system facilitates communication between the CNS and the outside world. The somatic nervous system is made up of sensory receptors that.

There are two aspects to consider to understand the difference between the central and peripheral nervous system. Anatomically speaking, the CNS is made up of the brain and the spinal cord; the PNS is made up of all the nerves travelling from the CNS to all the organs in your body, from the skin on your scalp to the tip of your toes.

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The difference between centre and periphery Back to overview Peripheral nerves, like those in the extremities, are able to regenerate after injuries. This ability is considerably greater than in the central nervous system (which includes the spinal cord) where cells fail to regenerate. But why is that so?