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Which of the following PNS neuroglia help to form myelin sheaths around larger nerve fibers in the PNS?
Schwann Cell
What PNS neuroglia help to form myelin sheaths around larger nerve fibers in the PNS?
In the peripheral nervous system, Schwann cells are responsible for forming myelin sheaths around the larger nerve fibres in the PNS. Keep in mind that one Schwann cell myelinates one nerve. You may hear about oligodendrocytes, but these are responsible for myelination in the Central Nervous System, and myelinate multiple nerves.
Difference between optic tract and optic nerve?
Bundles of neuron processes are called tracts in the cns and nerves in the pns
What Carries nerve impulses over long distances?
Are you talking about CNS and PNS Peripheral carry them out to arms/legs ect...
Which cell process are not myelinated?
According to McGraw Hill (please see related link below): Many nerve fibers in the CNS and PNS are unmyelinated. In the PNS, however, even the unmyelinated fibers are enveloped in Schwann cells. In this case, one Schwann cell harbors from 1 -12 small nerve fibers in grooves in its surface. The Schwann cell's plasma membrane does not spiral repeatedly around the fiber as it does in a myelin sheath, but folds once around each fiber and somewhat overlaps itself along the edges. This wrapping is the neurilemma (also called a mesaxon in unmyelinated nerve fibers). Also, gray matter of the brain and dendrites are unmyelinated, while axons are myelinated.
Is regeneration within the CNS more successful than with PNS?
YES
What are Bundles of axons are called?
NERVES
The postganglionic sympathetic fiber originates from?
The postganglionic sympathetic fiber originates from PNS within a ganglion
Which ganglion is unipolar?
The afferent nerve of the PNS have the pseudounipolar cells.
Which of the following PNS neuroglia help to form myelin sheaths around larger nerve fibers in the PNS?
Schwann Cell
Does the CNS nerve fibers lack the intrinsic capacity to regenerate while PNS nerve fibers are able to regenerate?
Yes
Cranial nerves part of what nervous system?
PNS means peripheral nervous system. CNS means central nervous system.
What PNS neuroglia help to form myelin sheaths around larger nerve fibers in the PNS?
In the peripheral nervous system, Schwann cells are responsible for forming myelin sheaths around the larger nerve fibres in the PNS. Keep in mind that one Schwann cell myelinates one nerve. You may hear about oligodendrocytes, but these are responsible for myelination in the Central Nervous System, and myelinate multiple nerves.
What neuron has the capacity for regeneration?
Motor neurons have the capacity to regenerate as long as the Schwann cells remain intact
What is a word for nerve cell bodies outside CNS?
ganglia is a group of cell bodies in the PNS.
The specialized cells of the PNS that are surrounded by a basement membrane that is capable of forming a regeneration tube through which a severed peripheral axon can regrow are the?
Schwann cells
What are nerves and muscle fibers?
A nerve fiber is a threadlike extension of a nerve cell and consists of an axon andmyelin sheath (if present) in the nervous system. There are nerve fibers in the central nervous system and peripheral nervous system. A nerve fiber may be myelinated and/or unmyelinated. In the central nervous system (CNS), myelin is produced byoligodendroglia cells. Schwann cells form myelin in the peripheral nervous system (PNS). Schwann cells can also make a thin covering for an axon which does not consist of myelin (in the PNS). A peripheral nerve fiber consists of an axon, myelin sheath, Schwann cells and its endoneurium. There are no endoneurium and Schwann cells in the central nervous system. A myocyte (also known as a muscle cell or muscle fiber) [1] is the type of cell found inmuscle tissue. They are long, tubular cells that arise developmentally from myoblasts to form muscles in a process known as myogenesis. [2] There are various specialized forms of myocytes: cardiac, skeletal, and smooth muscle cells, with various properties. Cardiac myocytes are responsible for generating the electrical impulses that control the heart rate, among other things
