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myelin sheath
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∙ 14y ago
Wiki User
∙ 14y agomyelin sheath
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The sheath of Schwann is also called what?
Its the Neurilemma.
What did virchowschleidan and schwann each contribute to the cell theory?
The name of the theory that Schleiden and Schwann developed is the cell theory.
Who proponent cell theory?
write down the proponent of the cell theory
Which supporting cell in the CNS has a function similar to the schwann cell?
The Oligodendrocyte (spelling might be slightly wrong) is the equivalent of the Schwann cell. Both of them create a myelin sheath around the axon of a neural cell, which provides electrical insulation.
What cell part contains an organism's genome?
The nucleus of the cell contains the genome.
What is the sheath of a schwann cell that contains cytoplasm and a nucleus and encloses myelin?
Neurilemma
Funtion of the nucleus of a schwann cell?
When the peripheral nervous system develops, Schwann cells line up along unmyelinated axons at regular intervals that eventually become the nodes of Ranvier (important for saltatory nerve condution). The ensheathing process takes place as Schwann cells wrap around the axon many times over, creating concentric layers whose cytoplasm progressively condenses. Contact with the axons also activates myelin genes leading to the expression of myelin glycoproteins and lipids across the Schwann cell plasma membrane. The sheath therefore consists of plasma membrane, cytosol, lipids, glycoproteins, and the Schwann cell nucleus.*So basically, the schwann cells is a protective membrane that covers the axon. It also produces myelin sheath (the coating of a neuron), which increases the speed of the nerve impulse.
Is the schwann cell a plant cell?
No--a schwann cell is a type of glial cell, a cell that functions to help and support neurons in a nervous system.
The sheath of Schwann is also called what?
Its the Neurilemma.
What did virchowschleidan and schwann each contribute to the cell theory?
The name of the theory that Schleiden and Schwann developed is the cell theory.
Describe how schwann cells form the myelin sheath and the neurolemma encasing the nerve processes?
The Schwann cells wrap themselves tightly around the axon like a jellyroll. During the wrapping process, the cytoplasm is squeezed from between adjacent layers of the Schwann cell membranes, so that when the process is completed a tight core of plasma membrane material encompasses the axon. This wrapping is the myelin sheath. The Schwann cell nucleus and the bulk of its cytoplasm end up just beneath the outermost portion of its plasma membrane. This peripheral part of the Schwann cell and its exposed plasma membrane is the neurilemma.
Who studied plant cell?
Schwann
Who was Schwann?
The German biologist Theodor Schwann (1810-1882) is considered a founder of the cell theory.
What is a schwann cell?
A schwann cell are supporting cells of the peripheral nervous system, they wrap themselves around nerve axons.
How many axons can a single Schwann cell myelinate?
Unlike oligodendrocytes Schwann cells can only myelinate one axon. But the number of Schwann cells it takes to myelinate an axon depends on the axon length as a Schwann cell only myelinates one area between pairs of Nodes of Ranvier. Think of it like a string of sausage. the sting is the axon, each sausage is where a single Schwann cell myelinates that axon, as stated the length will determine the total number of Schwann cells needed for myelination, but a Schwann cell can only myelinate one axon.
What is another name for schwann cell?
neurilemmocyte
Did Theodor Schwann work alone to develop the cell theory.?
False
