In resting state: For a heart that would have a left ventricle of 130 mL of end diastolic volume (EDV) and 60 mL of end systolic volume (ESV) and a heart rate 60 bpm.A. Calculate the output your pump should provide to the aortic arch. (in units of L/min)B. In moderate activity state: If the heart rate is expected to increase by 15% Calculate the output your pump should provide to the aortic arch hibernation levels so they cango back to sleep. A mitochondria-rich tissue called "brown fat" is responsible for this heat-generation.

To calculate the output the heart should provide to the aortic arch, we need to determine the stroke…

Answered: A. Calculate the output your pump…

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,...

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Heart failure occurs when a. the cardiac output is 15 liters per minute when you are watching television b. the cardiac output is 5 liters per minute when you are running as fast as you can on the treadmill. c. the cardiac outout does not change based on the energy expenditure d. all of the above
A person who lives close to sea level and usually goes jogging in the morning. When that person runs at a place like Denver with high elevation she notices she isn't able to run as fast up in Denver as she usually does at home. She knows it is colder and there is less oxygen at high elevation than there is at his home. Why she feel like she didn't have the energy to keep up with her usual pace. a. her body wasnt able to begin glycolysis due to lack of oxygen b. her body was producing less ATP due to lack of oxygen c. her body wasnt getting enough external heat input
Predict changes in PO2 and PCO2 in various places in the body (including the locations described in previous question), based on different scenarios. (Ex: during exercise, at altitude, when anemic...)
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After a 30 min Weight Lifting Session (Muscle, Cardiovascular) 1) Identify the specific disturbance(s). What is being moved away from set point or resting values? 2) How is (are) the changes detected? What are the physiological sensors? 3) How will body regulate the changes to return to normal? 4) Are there specific interactions between the 2 systems that help detection or help regulate the changes back to rest?
Start by defining RER and explain how and why the resting value is established (think back to bioenergetics). Next, explain how and WHY (again, this requires an understanding of bioenergetics) RER changes as exercise intensity is increased (think VT and RCP). Hints: consider the points where the production of a gas increases drastically and why this occurs. Furthermore, consider that VT is often used to approximate AT. Also keep in mind the endogenous buffering systems.
Caffeine lowers the heart rate by increasing rates of depolarization at the SA node True False Nicotine raises the heart rate because it stimulates the activity of the sympathetic neurons in medulla oblongata True False The Frank-Starling Law of the Heart states that the force of heart contraction is directly proportional to the initial length of the muscle fiber, within optimal limits of length True False If the sarcomeres stretched beyond the optimal length, the force of contraction would go down, but that can potentially happen only during open heart surgery when the heart is not constrained by the pericardium, lungs, ribs and diaphragm. True False It is the Na+ channel-driven spontaneous depolarization that is affected by sympathetic and parasympathetic inputs to speed up or slow down the firing rate of the SA node and other conductive cells. True False
1)The endogenous ligand epinephrine binds to alpha1 receptors in the vasculature and increases blood pressure. Which of the following correctly matches the drug to the expected in vivo effect? Group of answer choices alpha1 receptor negative allosteric modulator: decrease blood pressure alpha1 receptor antagonist: no effect on blood pressure alpha1 receptor agonist: decrease blood pressure 2)The endogenous ligand for an ion channel causes the influx of 50 Na+ ions per second. This ion channel has constitutive activity of 10 Na+ ions per second. If drug A binds to the ion channel and causes the influx of 50 Na+ ions per second, which of the following categories best describes drug A? Group of answer choices full agonist antagonist partial agonist inverse agonist
Interactions between the cardiovascular and respiratory system provide oxygen to the body.a. Describe the path of blood through the heart, including arteries and veins. Start at the blood entering the heart from the body. Indicate when blood is oxygenated and deoxygenated.b. Oxygen is transported by hemoglobin. Describe how pH affects the deposition of oxygen in tissues c. What are two sources of oxygen stores in the body to allow for rapid use when undergoing physical exertion? d. Which chamber of the heart is the most muscular, and why?
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