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What pairs lists the fiber like extensions that are components of neurons a axons and myelin b synapses and myelin c dendrites and axons d dendrites and synapses?
C. Dendrites and axons both extend from the cell body of the neuron in a branching fashion.
Which structures pertain to neurons?
Synapses, dendrites, dendritic spines (bumps on dendrites where synapses are often found), dendritic arbors (tree-like projections of dendrites), somas (body of neuron), axon hillocks (where a summation of input impulses may initiate an action potential or spike), axons, myelin sheaths (on myelinated axons), and axon terminals (containing vesicles of neurotransmitters).
How is myelin formed within the central nervous system?
The glial cells that surround the neurons produce myelin.
Do Schwann cells compose the cell body?
Myelin Sheath Cytoplasm Dendrites Cell Body
What are oligodendrocytes responsible for?
myelination of the axons and the dendrites are responsible for connection between the cell body and myelin
Parts of a neuron include?
dendrites -Apex
What is the purpose of myelin sheath?
This is a process that occurs in the CNS and PNS with axons. In the CNS oligodendrocytes surround the axons and in PNS schwann cells surround the axons. the myelin sheath will increase the speed of nervous conduction along the axon.
Are dendrites always myelinated?
No, dendrites are typically unmyelinated. Myelin is a protective covering that surrounds axons to increase the speed of electrical impulse transmission. Dendrites receive signals from other neurons and transmit them towards the cell body.
Does grey matter contain myelin?
That is a very good question. Gray matter is composed of cell bodies of neurons. Such cell bodies are also covered by myalin sheath. But the colour of myalin sheath is dominated by the color of nerve cell bodies. ( Without the myelin sheath, there will be short circuit.)
In a neuron the myelin sheath serves to insulate?
This insulation acts to increase the rate of transmission of signals. The Myelin Sheath of a neuron consists of fat-containing cells that insulate the axon from electrical activity.
What are the gaps between nerves?
The gaps between nerves are known as synapses, which are junctions that allow the transmission of signals between neurons. At these synapses, neurotransmitters are released from the axon terminal of one neuron and bind to receptors on the dendrites of another, facilitating communication. Additionally, the spaces between nerve fibers in peripheral nerves are called internodal gaps, which are regions between the myelin sheaths that insulate the axons. These structures are crucial for efficient nerve signal transmission and overall nervous system function.
Is the myelin sheath white?
Yes. You are right. White matter of brain is mainly composed of myelin sheaths, which surround the axons and gray matter is composed of nerve cell bodies.
