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Which part of the heart has the longest action potential?
The AV (atrioventricular node). Electrical conduction is slowed down at this node, and half the time of each action potential is spent on getting the signal through the AV node. This delay is to allow the ventricles to fill completely with blood before they get the signal to contract.
What is propogation delay in satellite?
A propagation delay is the amount of time it takes radio waves to travel from the surface of the Earth to the satellite and then back down to the Earth. The calculation of the delay is based upon the altitude and position of the satellite systems.
What causes the normal delay in transmission at the AV node What is the importance of this delay for cardiac function?
The delay occurs within the fibres of the AV node. It is important because it allows the atria to complete their contraction and empty their blood into the ventricles before the ventricles contract. There is a short delay (1 m/second) in transmission of the impulse to the ventricles.
What is the significance of the delay in transmission at the AV node in the heart?
The transmission delay at the AV node in the heart allows both ventricles to relax and be refilled by the contracting atria. After the AV node delay, the ventricles contract and force blood into the aorta (systemic circulation).
What is a round trip delay in satellite communication?
250 msec
Is the term for a delay or interruption in conduction of the electrical impulse in the myocardium?
The term for a delay or interruption in conduction of the electrical impulse in the myocardium is "heart block." Heart blocks can range from first-degree (mildest) to third-degree (most severe) based on the extent of conduction disruption in the heart's electrical system.
What is borderline AV conduction Delay?
Borderline atrioventricular (AV) conduction delay refers to a slight prolongation in the time it takes for the electrical signal to travel from the atria to the ventricles of the heart. While it may not meet the criteria for a definitive diagnosis of AV conduction delay, it can be an indicator of potential heart conduction issues that may require monitoring.
Is a conduction through the autonomic efferent chain faster than conduction the somatic motor system?
Yes, conduction through the autonomic efferent chain is generally slower than conduction through the somatic motor system. This is because the autonomic nervous system involves two neurons in the pathway (preganglionic and postganglionic), which introduces a delay in signal transmission compared to the direct pathway in the somatic motor system with only one neuron.
What is the ICD-9 code for Nonspecific Intraventricular conduction delay?
426.9
On an electrocardiogram a long P-R interval indicates what?
A long P-R interval on an electrocardiogram (ECG) indicates a delay in the conduction of electrical impulses through the atrioventricular (AV) node, a condition known as first-degree AV block. This can be a benign finding or may suggest underlying heart disease. While it often does not require treatment, it is important for healthcare providers to monitor the patient for any potential progression to more severe conduction blocks.
What is the significance of knowledge of result delay and post knowledge of result delay?
'Knowledge of results' is a form of augmented feedback where verbal information is given to an athlete at the end of the performance of a skill. In addition, 'post-knowledge of results delay' is the interval of time from delivery of that knowledge of results to the production of the next response.
What is Nonspecific Intraventricular conduction delay?
It is a condition in which there is slowed electrical conduction through a ventricle of the heart; usually secondary to cardiomegaly or cardiac failure
What condition indicates an abnormally long P-R interval?
An abnormally long P-R interval is indicative of first-degree heart block, a type of atrioventricular (AV) block. This condition occurs when there is a delay in the conduction of electrical impulses from the atria to the ventricles. While it is usually benign and asymptomatic, prolonged P-R intervals can sometimes lead to more serious arrhythmias. Monitoring and evaluation by a healthcare professional are recommended if a long P-R interval is detected.
What is a synonym for lag?
Some synonyms for lag are interval, wait, delay, intermission, pause, halt, and slack
Why it is called as delay circuit?
because it delays the input signal by some time interval before it appears on the output.
Is prolonged pr interval dangerous?
A prolonged PR interval, which indicates a delay in the electrical conduction from the atria to the ventricles, can be a sign of first-degree heart block. While it is often benign and may not require treatment, it can sometimes indicate underlying heart conditions that may be more serious. It's important for individuals with a prolonged PR interval to be evaluated by a healthcare professional to determine the cause and any necessary management. Regular monitoring may be recommended, especially if other symptoms or risk factors are present.
What is a prolonged PR interval?
A prolonged PR interval is a condition observed on an electrocardiogram (ECG) where the time taken for electrical impulses to travel from the atria to the ventricles is longer than normal, typically exceeding 200 milliseconds. This can indicate a delay in the conduction through the atrioventricular (AV) node and may be associated with various heart conditions, such as AV block. While it can be benign in some cases, a prolonged PR interval may require further evaluation to determine its underlying cause and potential implications for heart function.
