Schwann cell with nodes of Ranvier are found innon-medullated axons in the central nervous systemnon-medullated axons in the peripheral nervous systemmedullated axons in the central nervous systemmedullated axons in the peripheral nervous system
Question
Schwann cell with nodes of Ranvier are found innon-medullated axons in the central nervous systemnon-medullated axons in the peripheral nervous systemmedullated axons in the central nervous systemmedullated axons in the peripheral nervous system
Solution
Schwann cells with nodes of Ranvier are found in medullated axons in the peripheral nervous system.
Here's a step-by-step explanation:
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Schwann cells are a type of glial cell that are found in the peripheral nervous system. They produce the myelin sheath, a type of insulation that speeds up the transmission of electrical signals along nerve cells.
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Nodes of Ranvier are small gaps in the myelin sheath where the axon is exposed. They play a crucial role in the conduction of nerve impulses.
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Medullated (or myelinated) axons are those that are covered by a myelin sheath. This sheath is produced by Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.
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Therefore, Schwann cells with nodes of Ranvier are found in medullated axons in the peripheral nervous system. They are not found in non-medullated axons or in the central nervous system, as the myelin sheath in these areas is produced by different types of cells.
Similar Questions
Which type of cells form the myelin sheaths around axons?a) Schwann cellsb) Astrocytesc) Adjacent nerve cellsd) Muscle cells
The myelin sheath along an axon is not continuous. What are the gaps between Schwann cells called?Multiple ChoiceAxon terminalsNodes of RanvierCollateralsAxon hillocks
Schwann’s cells begin to form myelin sheaths around axons in the peripheral nervous systemGroup of answer choicesafter birth.when neurons are injured.during the early onset of Alzheimer’s disease.only in response to electrical stimulation by neuroglial cells.during fetal development.
Nodes of Ranvier representGroup of answer choicespoints where two axons connect.gaps in myelin wrapping.areas of high synaptic density.segments of axon where only K+ channels are located.segments of axon where passive current flows.
What are the two major cell types found in nervous tissue?Multiple ChoiceNeurons and nervesNeurons and neurogliaNeurons and effectorsAstrocytes and Schwann cellsDendrites and axons
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