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In coronary conduction the electrical impulse is released at what level of the coronary electrical system?
Wiki User
∙ 6y ago
With Wolff-Parkinson-White Syndrome, the heart has an extra nerve, or "accessory pathway" that electrically connects the _____ to the _____.
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∙ 6y ago
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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 critical role does the nodal system play in heart physiology?
Normal impulse conduction
Where does the electrical impulse of the heart get lost in the body?
the skin
What is bundle branch block in a heart?
A bundle branch block, (or BBB,) is a common problem with the heart. Indeed, it often isn't really much of a problem! The heart is composed of special muscle tissue that is sensitive to electricity. There are four chambers of the heart that the blood moves through. Since blood follows the same path through the heart, and it takes time for blood to move from one chamber to another, the electrical signal that triggers the heart to contract needs to follow a specific route so the right tissue can contract at the right time. Very basically, it works like this: 1) An electrical impulse is generated at the sino-atrial (SA) node, which is near the top of the heart. This causes the top chambers (the atria) to contract, pushing blood down into the bottom chambers (the ventricals.) 2) The impulse moves downward from the SA node to the atrioventricular (AV) node, which sends the impulse further down to prompt ventricular contraction. 3) From the AV node, the current runs into the Bundle of His (h-i-s-s), which splits into two halves - the right bundle and (wait for it...) the left bundle. 4) Both bundles carry the impulse to the terminus of the conduction pathway, the perkinjie (per-kin-gee) fibers. A bundle branch block occurs when there is impedence in the conduction of the impulse. That is, the electric impulse is slowed or stopped. Because heart tissue can make and conduct its own electrical impulse, a blockage is usually compensated for by literally rerouting the impulse through the heart tiisue itself. A slowing of the signal may make an EKG look different, but it's usually not that big of a deal. Keep in mind that this is a very basic description of how the heart's electrical conduction works. More can be found on the web pretty easily.
The electrical impulse that causes the heart to contract is generated in the right atrium at the?
Sinoatrial, or SA node.
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
The depressant effect of alcohol does not interfere with the conduction of the electrical impulse of the heartbeat?
true
Can the depressant effect of alcohol interfere with the conduction of the electrical impulse of the heartbeat?
false
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.
When does the human heart rest?
The electrical impulse reaches all the muscle tissue in the ventricles, and the ventricles contract. This electrical conduction pattern occurs approx. every 0.8 seconds.
What is the membrane of a nerve cell is comprised of?
Its main function is to propagate the action potential (the 'impulse') along the length of the axon.
What is impulse conduction?
Party of nervous
What kind of neurons does impulse conduction occur in the fastest?
nig
What tissue type functions in impulse conduction?
Nervous tissue.
What is neural impulse?
A neural Impulse is a spike of electrical activity.
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 features of nerves improve impulse conduction velocity?
myelin sheaths
