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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.
Where is the blood supply of bundle of His coming from?
atrioventricular branch of right coronary artery n 90 %......septal perforating branch of left ant descending vessel in rest of 10%
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
Where is the Bundle of His in the heart?
In the Interventricular septum, between the right and left ventricles of the heart.
Why does an ice block melt when left out in open?
The surrounding temperature increases the temperature of the ice block causing it to melt.
What advice would you give to someone who has a left bundle block?
Left bundle branch block affects the heart's electrical conduction system. When you have left bundle branch block, the left branch of this conducting system is partially or completely blocked. This causes the left ventricle to contract a little later than it should.
What is a left side bubble block mean in my heart?
You probably misheard bundle as bubble. Like me, you have left bundle branch block. Google that for more info.
Can Rheumatoid Arthritis Medication cause a left bundle branch block?
No
What do you mean by left anterior hemiblock?
Block of anterior branch ol left bundle
What occurs when a person has left bundle branch block?
There are several types of left bundle branch block, each producing its own characteristic mechanism of failure. In each case, the nerve impulse is blocked or delayed. Patients with LBBB may have left ventricular disease or cardiomyopathy.
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.
What is Bifascicular block?
Bifascicular block is where there are two or more blockages within the conduction system of the heart. For example right bundle branch block with left anterior fasicular block will be considered bifasicular block
What is the name of the bundle where the left and right branch bundles are joined?
The two bundles initially are together at a junction called the bundle of His.
How would damage to the left bundle branch affect blood flow to the systemic circulation?
Damage to the left bundle branch would prevent the left ventricle from contracting as normal. The left ventricle pumps blood to the rest of the body minus the lungs, i.e. the systemic circuit.
Sinus rhythm with incomplete right bundle branch block?
A series of nerve bundles or groups enter down through the heart through the middle wall (septum)and split to come back upwards towards both the right and left chambers of the heart. If trauma, or more likely in injury due to small areas where the heart muscle has died, occurs there may be an interruption in the ability for nerve pulses to go past this point. This changes the regular (normal sinus) rhythm and speed of the heart beating into an irregular arrhythmia and is often associated with slowing of the heart rate.
If a myocardial infarction damaged the left bundle branch how would this affect the spread of the action potential?
Ventricular depolarization takes longer because impulses in the left ventricle must travel from cell to cell rather than traveling down the left bundle branch and Purkinje fibers. (This will lead to a longer QRS complex on an ECG)
Where is the blood supply of bundle of His coming from?
atrioventricular branch of right coronary artery n 90 %......septal perforating branch of left ant descending vessel in rest of 10%
