can the pns carry on regeneration?
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Central nervous system (CNS) axons do not spontaneously regenerate after injury in adult mammals. In contrast, peripheral nervous system (PNS) axons readily regenerate, allowing recovery of function after peripheral nerve damage.
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The PNS is a vast network of spinal and cranial nerves that are linked to the brain and the spinal cord. It contains sensory receptors which help in processing changes in the internal and external environment. This information is sent to the CNS via afferent sensory nerves.
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The peripheral nervous system (PNS), which consists of the neurons and parts of neurons found outside of the CNS, includes sensory neurons and motor neurons. Sensory neurons bring signals into the CNS, and motor neurons carry signals out of the CNS.
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The vertebrate olfactory system has become an important model for the study of neural regeneration. The most remarkable feature of this system is its unique capacity for neurogenesis and replacement of degenerating receptor neurons. This replacement is made possible by a persistent neurogenesis among basal cells.
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Neurons in the CNS are covered by myelin sheath that maintains conduction of nerve impulse. Consistently, the CNS houses oligodendrocytes for myelin synthesis. On the other hand, Schwann cells are the myelinating cells in the peripheral nervous system (PNS).
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The primary role of the PNS is to connect the CNS to the organs, limbs, and skin. ... The peripheral system allows the brain and spinal cord to receive and send information to other areas of the body, which allows us to react to stimuli in our environment.
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A lot of TMs are one-time only, and you can't clone them without a hacking device. You can trade for one, if you so desire.
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Regeneration means the regrowth of a damaged or missing organ part from the remaining tissue. As adults, humans can regenerate some organs, such as the liver. If part of the liver is lost by disease or injury, the liver grows back to its original size, though not its original shape.
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Regeneration of the Olfactory Nerve Although most nerve cells do not regenerate at all, the olfactory nerve is unusual because it does have the capacity to regenerate in some situations. If damage occurs to only the epithelial cells, they have the ability to regrow in both children and adults.
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The PNS can be broken down into two systems: the autonomic nervous system, which regulates involuntary actions such as breathing and digestion, and the somatic nervous system, which governs voluntary action and body reflexes.
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The sensory division of the PNS carries sensory information from the body to the central nervous system. The motor division of the PNS carries nerve impulses from the central nervous system to muscles and glands throughout the body. The nerve impulses stimulate muscles to contract and glands to secrete hormones.
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Neuroglia in the CNS include astrocytes, microglial cells, ependymal cells and oligodendrocytes. Neuroglia in the PNS include Schwann cells and satellite cells. Astrocytes support and brace the neurons and anchor them to their nutrient supply lines.
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Neural crest (NC) cells are a migratory cell population synonymous with vertebrate evolution. ... Such incredible lineage potential combined with a limited capacity for self-renewal, which persists even into adult life, demonstrates that NC cells bear the key hallmarks of stem and progenitor cells.
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Viable neighbouring cells might replace such 'loosened' dying epithelial cells while the corpse is being removed. Alternatively, cell extrusion into the organ lumen or another tissue space14 might allow for subsequent apoptotic cell removal by luminal phagocytes such as alveolar macrophages.
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It is possible for your tonsils and adenoids to grow back following a tonsillectomy or adenoidectomy if your surgeon does not completely remove all of the lymphoid tissue during surgery. Even a very tiny amount of tissue can cause them to grow back. However, this isn't a common occurrence.
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The peripheral nerves have a great ability to heal. Even though it may take months, recovery can occur. However, in some situations, symptoms of neuropathy may lessen but not completely go away. For example, nerve injury caused by radiation often does not recover well.
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A cure for NTM is possible and long-term success rates of treating this infection can be as high as 86%. If a cure is not possible, treatment may allow for stabilization of lung disease and prevention of continued lung destruction.