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

Q: What happens to the heart rate and cardiac output during exercise?

A: Heart rate and cardiac output are two key indicators of cardiovascular health. Heart rate, or the…

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: List the factors promoting venous return during exercise?

A: Venous return is when the blood is returned back to the heart through pulmonary and systemic veins.…

Q: Discuss the regulation of cardiac output during exercise.

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: What happens to the stroke volume during exercise?

A: Stroke Volume (SV) is that the volume of blood in milliliters ejected from every ventricle because…

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: 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: Why do differences occur in maximal shortening velocities?

A: The shortening speed of a muscle fiber is that the rate of its shortening.

Q: Define the term isovolumetric ventricular relaxation?

A: The term isovolumetric ventricular relaxation (IVR) is related to the cardiac cycle. The cycle…

Q: Define the term Control of Stroke Volume?

A: Cell is the basic unit of life. Based on the number of cells an organism may be prokaryotic or…

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: explain how blood viscosityand blood vessel length each influence cardiac output?

A: Viscosity, a basal parameter in physics, is a crucial and important determinant of the shear stress…

Q: Integrate the factors that determine stroke volume and heart rate?

A: The amount of blood pumped with the help of the left ventricle of the heart does in one contraction.…

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: Describe the process of Contraction Coupling in the Cardiac Muscle?

A: Answer: Introduction: Cardiac muscle, comprised of the contractile cells of the heart, contain a…

Q: Describe the physiology behind the change in blood pressure and heart rate change after exercise

A: The blood pressure is the pressure that is applied on the walls of the arteries. The pressure is…

Q: Which are the major factors responsible for limiting the increase in stroke volume?

A: Contraction of heart muscle by compression of ventricles ejected a small volume of blood in…

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: Define cardiac output and given numerical values compute the cardiac output

A: Cardiac output is a term which describes the amount of blood being pumped by the heart through the…

Q: What is the cardiac output of a person with a resting stroke volume of 60 mL and a heartbeat of 80…

A: Cardiac output is the volume of blood the heart pumps per minute. Cardiac output= stroke volume×…

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: How do blood volume and venous tone affect cardiacoutput?

A: The heart pumps the blood, and the amount of blood that is pumped by it within one minute through…

Q: Explain how the heart rate, pulse period and pulse amplitude changed with exercise and why?

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

Q: Name three mechanisms that can increase cardiacoutput.

A: The amount of blood that the heart pumps, each minute is defined by the term known as cardiac…

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: Explain the generation of cardiac action potential. Describe the cardiac conduction system and…

A: Introduction Cardiac action potential includes the changes in the membrane potential across the cell…

Q: Define Cardiac Output, give its relationship with Stroke Volume.

A: Introduction - The heart is a muscular organ the size of a fist that is placed directly behind and…

Q: Compared with resting values, blood flow changes in various organs during moderate exercise are most…

A: Introduction        During exercise minimum changes are observed in blood flow to brain, as in…

Q: How are preload, afterload, and contractility managed therapeutically in the patient with heart…

A: Heart failure is characterized by the heart’s inability to pump an adequate supply of blood to the…

Q: During heavy exercise, how much cardiac output may increase?

A: Cardiac output is the amount of blood pumped by the heart into the aorta in one minute. Heart beats…

Q: Define cardiac output, and explain how it is influenced by both heart rate and stroke volume.

A: The cardiac cycle is the human heart's performance from the beginning of one heartbeat to the…

Q: What does the left ventricular stroke work index (LVSWI) measure?

A: Ventricular stroke work is the work done by a ventricle in pumping the blood in one cardiac cycle.…

Q: What is stroke volume? What is its relation will cardiac output ?

A: The value obtained from the subtraction of end-diastolic volume and end-systolic volume refers to…

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: How do heart rate, preload, afterload, and contractility affect cardiac output and cardiac workload?

A: The cardiovascular framework circulates blood all through the body in order to supply oxygen and…