What events occur in the ventricles during late ventriculardiastole?

Q: What effect would have cardiac arrhythmias, such as acute atrial fibrillation on cardiac output and…

A: The complications of heart arrhythmias might incorporate stroke, unexpected death, and…

Q: What are Cardiac Action Potentials?

A: Unlike the action potential in skeletal muscle cells, the cardiac nerve impulse isn't initiated by…

Q: Describe the events leading up to contraction in a cardiac contractile cell. (Where does the…

A: Cardiac muscles are similar to skeletal muscles with a few differences:-a) Contraction is…

Q: What are the mechanisms that assist in returning venous blood to the heart?

A: The most important transport liquid in the human body is blood. This is circulated from heart to…

Q: if the impulse is coming inferiorly from the SA node then how do the ventricles contract inferior to…

A: Sino atrial (SA) node is a pacemaker in the heart responsible for generation of action potential.…

Q: Define events associated with period of ventricular filling , ventricle systole and ventricular…

A: The events that happen during a single heartbeat is known as the cardiac cycle. The duration of a…

Q: How is cardiac output calculated?

A: The human heart is situated in the middle of the thoracic cavity in a space called the mediastinum.…

Q: What is the change in intraventricular pressure between the time the first heart sound begins and…

A: The circulatory system is one of the most essential systems in the body. The function of the…

Q: How is a cardiac impulse initiated?

A: The transportation of blood in the body is the function of the human circulatory system, also called…

Q: How does vasoconstriction in the skin and viscera resultin increased venous return to the heart?

A: The constriction of the blood vessels is known as vasoconstriction. It leads to the increased blood…

Q: What is the function of ventricles?

A: Ventricle is a hollow cavity present in an organ. In Brain, ventricle is a region of choroid plexus…

Q: How does the AP relate to mechanical events occurring in the heart?

A: The heart is the epicenter of the cardiovascular system and is one of the major organs of the body…

Q: Explain the absence of peripheral pulses in ventricularfibrillation.

A: In the human circulatory system, the heart is considered the central organ that plays a significant…

Q: Describe the pressure-volume curve of the left ventricle

A: Introduction: The sequence of alterations in the flow and pressure in the cardiac chambers and the…

Q: The QRS complex of the ECG is produced when the, (a) atria depolarize. (b) ventricles depolarize.…

A: An electrocardiogram is used necessarily and generally in hospitals to record the electrical signals…

Q: The onset of ventricular systole is characterized by the closing of AV valves and ?

A: The cardiovascular system is a vital division of the body's circulatory system comprised of the…

Q: How does each ECG wave, interval, and segment relate to contraction (systole) and relaxation…

A: Electrocardiogram (ECG) is used to measure the regularity of heartbeats and also the size and…

Q: What factors stimulate venoconstriction?

A: Vasoconstriction reduces the volume or space inside affected blood vessels. When blood vessel volume…

Q: How does blood composition differ in the right and left ventricle?

A: The heart is the pumping organ that is responsible for circulating the blood to different parts of…

Q: Which region of the heart is innervated by the sympathetic division but not by the parasympathetic…

A: Heart is the vital part of the body that help in the circulation of blood, oxygen and nutrients…

Q: What anatomic features slow the conduction rate of the action potential as it passes through the AV…

A: The conduction system is a collection of nodes and specialised conduction cells that initiate and…

Q: How do the sympathetic and parasympathetic divisions of the autonomic nervous system adjust heart…

A: Heart rate can be defined as the pace at Which the heartbeats in a minute. The average heart rate of…

Q: What is the end-diastolic volume (EDV)?

A: The heart pumps blood through a system of blood vessels, called the circulatory system. The heart is…