Why is afterload important to cardiac function?

Q: What are Cardiac Action Potentials?

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

Q: How does the delay of the impulse at theatrioventricular node contribute to cardiac function?

A: The second clump of myocardial specialized conductive cells is called as atrioventricular node. This…

Q: Explain how an action potential occurs in cardiac contractile fibers.

A: The automatic rhythmicity of the heart is its ability to contract spontaneously and at regular rate.…

Q: Draw the pressure changes along the systemic and pulmonaryvascular systems during the cardiac cycle?

A: Along the systemic and pulmonary vascular systems during the cardiac cycle  the pressure which…

Q: How does the body try to compensate for insufficient cardiac output during shock states?

A: Cardiac output refers to the blood that the heart pumps through both left and right ventricle in a…

Q: What is the effect of High Altitude on the Cardiopulmonary System?

A: Airways, railways, highways, and canals are the world's human and commodities transportation…

Q: What is known as cardiac output ?

A: The human heart has four chambers within it. These four chambers are the Right and Left atria and…

Q: What drives heart rate?

A: The heartbeat is activated by electrical impulses that travel down a special pathway through the…

Q: What is Preload and Afterload in the cardiac output of a human heart?

A: Preload is the initial stretching of the cardiac myocytes (muscle cells) prior to contraction. It is…

Q: What compensatory measures does the body employ in an attempt to restore cardiac output?

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

Q: Define cardiac output, describe how it is regulated, and identify factors that affect it.

A: Cardiac muscle tissue can be defined as one of the three types of muscle tissue in our body. Cardiac…

Q: What is the limiting cardiovascular factor in endurance exercise?

A: Endurance exercise is also called aerobic exercise. It involves activities that elevate breathing…

Q: How would “hardening of the arteries” (arteriosclerosis) affect blood pressure? Why?

A: Introduction: Atherosclerosis and arteriosclerosis are often used interchangeably. They both refer…

Q: What is the primary cause of the low velocity of bloodflow in capillaries?

A: The circulatory system is one of the major systems of the human body. The circulatory system…

Q: Describe the factors that influence preload and afterload, and explain how they affect cardiac…

A: Cardiac output is  defined as a amount of blood  heart pumps in a  minute, and also  it depends on…

Q: Why does the total cross-sectional area in the capillary system lower the resistance to flow?

A: Cardiovascular system comprises of Heart, blood vessels and blood. The function of cardiovascular…

Q: Define the terms contractility, preload, and afterload, and explain how these factors affect the…

A: Ans: Cardiac output: The heats efficiency is calculated by the volume of blood it pumps to the…

Q: What effects does the parasympathetic nervous system have on cardiac output?

A: The cardiovascular system plays the part in conveying the blood through vessels to and from all…

Q: What are the principal inputs to and outputs from the cardiovascular center?

A: Cardiovascular centre It is a part of the human brain which regulates heart rate through the nervous…

Q: What does v1 v2 v3 mean in ECG?

A: Electrocardiography refers to the method of recording the electrical activity of the heart. A…

Q: Why are changes in LVEDV important for left heart failure?

A: The circulatory system, additionally called the cardiovascular system or the vascular system, is an…

Q: How does aging affect blood pressure? Is advanced age considered a barrier to aggressive…

A: Aging:- it is a process of progressive deterioration that causes reduction in physiological…

Q: What is the relationship between cardiac output and venous return in the steady state?

A: Cardiac output is the amount of blood pumped into the aorta by the heart per minute, and it is…

Q: Can you please explain in detail :  is the ventricular afterload a determinant of cardiac…

A: Cardiac Output- This is the process in which blood volume used to ejected by the heart/ unit time.…

Q: How does the long plateau of the cardiac action potential develop and what is its functional role?

A: Hi, Thanks For Your Question.  Answer : A Transient Shift In Voltage (Membrane Potential) Across The…

Q: Is it possible for blood pressure to decrease to such a degree that capillary exchange ceases?…

A: Blood pressure is defined as the pressure exerted by the circulating blood against the blood vessels…

Q: Which organs have an increased proportion of cardiac output during exercise? Which receive a…

A: Cardiac output is also called heart output. It describes the blood volume being pumped by the heart…

Q: Why does heart rate increase with exercise?

A: Exercise may be defined as any physical body activity that can increase the fitness of an individual…

Q: It is believed that dehydration may lead to a change in cardiac function immediately. Is it correct?…

A: Ans- yes it is correct because the heart is strained as a result of dehydration. When you are…

Q: Define a cardiac cycle and the cardiac output.

A: Cardiac system or in clinical terms , the cardiovascular system is defined by the entire organ…

Q: Why must this change occur? (in reference to how does the heart rate differ before and after…

A: The process of circulation or internal transport is carried out by the pumping organ of the body,…

Q: List the AV Conduction defects?

A: Introduction: AV conduction disorder is the collection of disorders where the conduction of the…

Q: How much of the total cardiac output may increase during the performance of heavy exercise?

A: The word "cardiac output" refers to the amount of blood pumped by the heart every minute. The…

Q: Pressure changes that occur during the cardiac cycle are responsible for what two physiologic…

A: The cardiac cycle is the time interval between atria contraction and ventricular relaxation. Fluids,…