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What are the pathways through the body for electrical impulses?
in what order do the structures of the neuron carry the electrical signal?
What is the correct sequence of cardiac electrical activity?
The impulses from SA node spread through out the atrial musculature in about 0.09 seconds, and parallel to it, the impulses also reach the AV node. From AV node, after a delay of about 0.12 seconds they pass to the inter ventricular septum through the Bundle of His, which soon divides into Left and Right Bundle branch and ultimately into the Purkinje fibers which first depolarize the endocardium of the ventricles and then the rest of ventricular musculature. SA Node --> Atria, AV node --> Bundle of His --> Right & Left Bundle Branches --> Purkinje fibers
If a myocardial infarct destroyed a portion of the right or left bundle branches what potential change might you see in the ECG?
You can see the M pattern in ECG in place of ORS complex. In case of right bundle branch block, you see the M pattern in lead V one. In case of left bundle branch block, you see the M pattern in lead V six.
Is bundle an abstract noun?
yes bundle is an abstract noun
What are the Fibers of ventricular bundle?
part of the electrical pathway combined with the bundle of His
How many bundle branches does the heart have?
There are two bundle branches, right and left.
The correct sequence in the conduction system of the heart is?
SA node, Internodal pathways, AV node, Bundle of His, Bundle branches, Purkinje fibers.
Where do nerve impulses travel from to enter the bundle branches?
Nerve impulses come through the sinus node of the heart to the bundle of His and then move into the right and left bundle branches.
The normal pattern of impulse conduction through the heart is?
SA node, AV node, AV Bundle, Bundle branches, subedocardial branches (purkinje fibers)
What connects atrium s to ventricles?
bundle branches
What component of the conduction system is located between the ventricles?
there is the junctional node, the bundle of his and the left and right bundle branches
Location of the Left and right bundle branches?
within the interventricular septum
What is the function of the bundle branches?
To transfer electrical activity to pakinji mucsles
What is the correct path for the transmission of an impulse in the instrinsic condition system of the heart?
sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle, right and left bundle branches, Perkinje fibers
What is The order of impulse conduction in the heart from beginning to end?
The impulse starts in the right atria in the sinus node, then travels through the intratrial fibers for atrial contraction, then travels down to the the av node where it is delayed, then travels down through the bundle branches to the purkinjee fibers to the ventricular myocardium for contraction.
What is a BBB in the heart?
This si known as a Bundle Branch Block - and refers to an anomaly of a blockage in the nerve system of the heart at the bundle branches.
What is The function of left and right bundle branches?
The right bundle carries nerve impulses that cause contraction of the right ventricle (the lower chamber of the heart) and the left bundle carries nerve impulses that cause contraction of the left ventricle.
