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Is saltatory conduction made possible by large nerves fibers diphasic impulses myelin sheath or erratic transmission of nerve impulses?
Wiki User
∙ 10y ago
Saltatory conduction is made possible by gaps in the myelin sheath (called nodes of Ranvier) along the axon, which allow for the action potential to "jump" from one node to the other, increasing conduction velocity.
Wiki User
∙ 10y ago
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Saltatory conduction refers to the conduction of impulses in?
It is the "skipping" pattern that impulses follow to travel down nerve axons.
Why is the transmission of nerve impulses often referred to as an electrochemical event?
Myogenic conduction
When does saltatory conduction occur?
Saltatory Conduction is a means by which action potentials are transmitted along myelinated nerve fibers. The cytoplasm of an axon is electrically conduction and because myelin inhibits charge leakage through the membrane, depolarization at one node of Ranvier is sufficient to elevate the voltage at a neighboring node to the threshold for action potential initiation. Therefore in myelinated axons, instead of axon propagating as waves but they occur at successive nodes and 'hop' along the axon. This means of travel is much faster than they would otherwise (120 m/sec compared to 35m/sec in unmyelinated nerve fibers). Another advantage of this is that energy is saved as sodium potassium pumps are only required at specific points along the axon. Sean Sinclair
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.
What is the conduction of nerve impulses?
Neurons
Conduction of nerve impulses is possible because of the?
Conduction of nerve impulses is possible because ions in the extracellular environment versus the ions inside the cell.
Why is the conduction of impulses slow in autonomic nervous system?
Because there is no need for a fast transmission, in most cases, of the chemical messengers (hormones). Therefore, the nerve cells are unmyelinated and send their signal in a continuous transmission.
The movement of electrochemical impulses in the myocardium?
myogenic conduction
What is the medical term meaning interruption of the electrical impulses in the heart's conduction system?
Heart block is the term meaning interruption of electrical impulses in the heart's conduction system.
The movement of electrochemical impulses in the myocardium is called?
Myogenic Conduction
Which type of tissue is specialized for conduction of impulses?
Nervous System
What is electroneurography?
The measurement of the speed of conduction of impulses down a peripheral nerve.
