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The speed of nerve transmission can be affected by factors such as the myelination of the nerve fiber, temperature, and the diameter of the nerve fiber. It is measured using techniques such as nerve conduction studies, where electrodes are placed on the skin to measure the speed of electrical impulses along a nerve.

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1y ago

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Does myelin sheaths slow down nerve impluses?

No, myelin sheaths actually speed up nerve impulses by increasing the speed of signal transmission along the nerve fibers. This is due to the insulation effect of myelin, which helps to prevent signal loss or leakage.


What is involved in electromyographic and nerve conduction velocity testing?

These tests involve stimulating the median nerve with electricity and measuring the resulting speed and strength of the muscle response, as well as recording speed of nerve transmission across the carpal tunnel.


What affects nerve impulse speed?

Nerve impulse speed is affected by the diameter of the nerve fiber (larger fibers conduct faster), the presence of myelin sheath (myelinated fibers conduct faster), and temperature (warmer temperatures enhance conduction speed). Additionally, the refractory period of the neuron and the strength of the stimulus can also influence nerve impulse speed.


Which structure is coated with myelin to increase speed of nerve impulse transmission?

The structure coated with myelin to increase the speed of nerve impulse transmission is the axon. Myelin is a fatty substance that forms a protective sheath around the axon, facilitating faster electrical signal conduction through a process called saltatory conduction. This allows the nerve impulses to jump between the gaps in the myelin sheath, known as nodes of Ranvier, significantly enhancing transmission speed.


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How do nerve axons enhance speed of nerve impulse transmission?

By being wrapped in myelin sheaths, produced by Schawann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.


How does each factor affect transmission of sound waves?

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How long does it take to have a message from a nerve cell go to your brain?

The speed at which a message travels from a nerve cell to the brain can vary, but it typically ranges from milliseconds to a few seconds. Factors such as the distance the message has to travel and the type of nerve fibers involved can influence the speed of transmission.


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What are household items that are measured by speed?

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How does the myelin sheath and synapse affect nerve impulses speed up or slow down?

The myelin sheath acts as an insulating layer that helps speed up nerve impulses by allowing them to "jump" between gaps in the sheath called nodes of Ranvier. This process, known as saltatory conduction, accelerates the transmission of nerve impulses along the axon. At the synapse, neurotransmitters are released to transmit signals between neurons. The efficiency of this process can also affect the speed of nerve impulse transmission.


What is the function of the node of Ranvier in the nervous system?

The node of Ranvier is a gap in the myelin sheath of a nerve cell where action potentials are generated and help speed up the transmission of nerve impulses along the axon.