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What is the the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?
Wiki User
∙ 13y ago
sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers
Wiki User
∙ 13y ago
Wiki User
∙ 12y agotoward the heart
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What critical role does the nodal system play in heart physiology?
Normal impulse conduction
The normal pattern of impulse conduction through the heart is?
SA node, AV node, AV Bundle, Bundle branches, subedocardial branches (purkinje fibers)
In coronary conduction the electrical impulse is released at what level of the coronary electrical system?
With Wolff-Parkinson-White Syndrome, the heart has an extra nerve, or "accessory pathway" that electrically connects the _____ to the _____.
How fast do brainwaves travel?
The fastest nerve conducts an impulse at 120 metres per second. However transmission speed is related to diameter, and so nerves with a smaller diameter conduct impulses at a much slower speed. In general, the conduction velocity is approximately equal to 6 x axon diameter in micrometres. The constant value of 6 is referred to as the Hursh factor.
What characterizes the normal operation of the heart?
each part contracts in a specific order. Contraction of the muscle is triggered by an electrical impulse. These electrical impulses travel through specialized cells that form a conduction system. Following this pathway ensures that contractions will
What is the point in the intrinsic conduction system where the impulse is temporarily delayed?
Av node
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.
Does the saltatory conduction reduce the energy expenditure of the sodium potassium pump for impulse transmission?
yes
What is impulse conduction?
Party of nervous
Which is the correct sequence in the transmission of a neural impulse?
dendrite, cell body, axon, synapse
What tissue type functions in impulse conduction?
Nervous tissue.
What kind of neurons does impulse conduction occur in the fastest?
nig
What is the difference between synaptic and nerve impulse transmission?
Synaptic transmission is chemical, while nerve impulse or axonal transmission is electrical.
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
The depressant effect of alcohol does not interfere with the conduction of the electrical impulse of the heartbeat?
true
