We measured the stroke volume of the left ventricle. What was the average stroke volume of the rig| ventricle at rest and after exercise? Assume that for one beat, the stroke volume of the left ventricle is greater than that of the right ventricle. Explain why in a normal heart this would be corrected on the next beat. Explain why elite athletes have a lower than normal heart rate, yet have a higher than normal ability

We measured the stroke volume of the left ventricle. What was the average stroke volume of the rig| ventricle at rest and after exercise? Assume that for one beat, the stroke volume of the left ventricle is greater than that of the right ventricle. Explain why in a normal heart this would be corrected on the next beat. Explain why elite athletes have a lower than normal heart rate, yet have a higher than normal ability

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

With endurance athletes, an increased stroke volume at rest will occur because of Select 3 correct answer(s) Increased blood volume Increased myocardial contractility Increased compliance of the left ventricle Increased vagal tone
Which of these accounts for the similarity between the P wave duration and the QRS complex duration despite the ventricle being much larger than the atria? Group of answer choices The His-Purkinje system has a faster conduction velocity than the atrial system The atria contain the same volume of blood as the ventricles Gravity increases the ventricular conduction velocity The rate of phase 4 depolarization is similar in all the conducting cells of the heart
Why is your heart rate high after running a short distance, but not as elevated after running a much longer distance? How do you explain this?
In a cardiac contractile cell what is the mechanism involved in the change in membrane potential? Depolarization: P wave Repolarization: QRS Complex, Hyperpolarization: T wave Pacemaker: K+ and Na+ flow, Depolarization: Pca rises Repolarization: Pk rises Depolarization: Pna increases, Peak: Na channels close, Plateau: Calcium channels close & Potassium channels open, Repolarization Potassium flows out & Calcium flows in Pacemaker: K+ and Na+ flow, Depolarization: Pca rises Repolarization: Pk rises, 4. If channels close Depolarization: Pna increases, Peak: Na channels close, Plateau: Calcium channels open & Potassium channels close, Repolarization Potassium flows out & Calcium flows out
we measured the stroke volume of the left ventricle. What was the average stroke volume of the right ventricle at rest and after exercise?
The role of calcium currents in cardiac contractile cells is to . The role of calcium currents in cardiac conductive cells is to . Choose between: release neurotransmitter, bring the membrane potential to threshold, initiate action potential, prolong action potential, terminate action potential
Describe isovolumetric ventriclar contraction in five steps
The marks a spot of dead myocardial cells. How does this change the depolarization and muscle contraction patterns in specific locations of the heart? M Pulmonary semilunar valve Aortic semilunar valve Right AV- valve Left AV valve
Using information provided in the text, calculate the power generated by the right ventricle during (a) restful state; blood flow 5 liter/min, and (b) intense activity; blood flow 25 liter/min.
Hello, please answer the following Physiology question completely and correctly. Thank you. Physiology Question: "Draw, both a cardiac muscle action potential and an autorhythmic cell action potential and label the different ion movements.".
Increased contractility of the heart results in all of the following EXCEPT (A) increased stroke volume (B) increased force of contraction (C) increased end-systolic volume (D) increased venous return
What is the function of the pulmonary circulation In a resting state, explain what happened to the heart rate when the stroke volume decreased. Why does this occur? DescribetheFlank-Starlinglawintheheart. Compare the structural features of the different chambers and valves of the heart and how this relates to their function. Explain the flow of the blood as it passes through the heart. Describe how the heart alters stroke volume under sympathetic stimulation. please answer the queations into 2 paragraphs. thanks.