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What represents the time it takes for an electrical impulse to travel from the sa node to the av node?
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∙ 10y ago
P-R interval
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∙ 10y ago
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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.
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What are the limitations of the use of electrical impulse in the body?
it takes time to reach its mechanism.
In an ECG pattern the P-Q interval indicates how long it takes for the cardiac impulse to travel from the?
An ECG pattern the P-Q interval indicates how long it takes for the cardiac impulse to travel from the SA node through the AV node.
What is a Nerve conduction velocity test?
A test that measures the time it takes a nerve impulse to travel a specific distance over the nerve after electronic stimulation.
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The transition from a photon to a nerve impulse takes place within the rods and cones of the retina.
What is nerve conduction velocity test?
Nerve conduction velocity test-- A test that measures the time it takes a nerve impulse to travel a specific distance over the nerve after electronic stimulation.
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When an injury occurs, it takes a few seconds for the brain to register the pain. The impulse has to travel from the point of impact to the brain and back again.
When does your heart get 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.
Is the human arterial pressure waveform wider than the ECG waveform?
Yes. The EKG (or ECG) measures the electrical activity of the heart so the waveform (the QRS complex) reflects how fast the electrical impulse spreads through the heart. The heart actually takes longer than this to contract leading to a wider waveform.
An efferent nerve takes an impulse towards the brain?
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What energy transformations take place in:
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If you travel by plane it only takes 1 and a half hour from luzon to mindanao. If you travel by sea it takes 24hours. If you travel by land it takes almost 2days.
What do you call the path electricity takes?
The electrical path is termed an electrical circuit.
