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Why does increasing the axon diameter also increase the speed of impulse conduction?
Wiki User
∙ 9y ago
Larger diameter axons conduct impulses more rapidly than axons with a smaller diameter. Larger axons tend to be myelinated and conduct impulses rapidly. Myelin is a substance rich in lipid that forms an electrical insulation layer around the axon. This insulating myelin sheath allows impulses to be transmitted more rapidly then small diameter axons that are nonmyelinated.
Wiki User
∙ 15y ago
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The velocity of nerve impulse conduction is greatest in?
Heavily myelinated, large diameter fibers
What is the myelin sheath's function?
The function of the myelin sheath is to insulate the axon of the neuron. When there are gaps in the sheath, known as nodes of Ranvier, the nerve impulse can jump from gap to gap, thus increasing greatly the speed of conduction of the nerve impulse. This is known as saltatory conduction.
What the function of the myelin sheath?
The function of the myelin sheath is to insulate the axon of the neuron. When there are gaps in the sheath, known as nodes of Ranvier, the nerve impulse can jump from gap to gap, thus increasing greatly the speed of conduction of the nerve impulse. This is known as saltatory conduction.
What is impulse conduction?
Party of nervous
What is the difference between impulse conduction and transmission?
Impulse conduction refers to passage of impulse within the same cell. Where as transmission as the name implies, is concerned about passage of impulses either chemical or electrical from one cell to another.
A factor that determines the rate of impulse propagation or conduction velocity along an axon?
The speed at which neural impulses are transmitted. Diameter of the axon Degree of myelination of the axon
What tissue type functions in impulse conduction?
Nervous tissue.
What kind of neurons does impulse conduction occur in the fastest?
nig
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
What features of nerves improve impulse conduction velocity?
myelin sheaths
When current leaps across an insulating myelin sheath from node to node the type of impulse conduction is called what?
Saltatory Conduction
What is the point in the intrinsic conduction system where the impulse is temporarily delayed?
Av node
