Answered: Which of the following factors do NOT…

Which of the following factors do NOT affect venous return? Blood volume Venomotor tone Skeletal muscle contractions O Inspiration (breathing in) All of the above affect venous return

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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How could the cardiovascular system maintain constant mean arterial pressure following vasodilation and decreased resistance in peripheral blood vessels? increasing stroke volume or heart rate decreasing stroke volume or heart rate O increasing stroke volume or decreasing heart rate decreasing stroke volume or increasing heart rate
2. Fill in the blanks Normal value (with unit) in a healthy resting individual Stroke Volume Resting Cardiac Output Resting Mean Arterial Pressure Resting Alveolar Ventilation Rate pH of the Arterial Blood Arterial PO2 Arterial PCO2
Within the Fick Equation, what does "a-vO2diff" represent? amount of CO2 produced when exercising amount of oxygen removed at the level of the tissue O difference in RBC's between arterial and venous blood flow amount of ATP produced within a tissue
The anoxic lethal corner (of death): O Describes the lack of nutrients diffusing at the beginning of a capillary Determines the maximum inter-capillary distance Is found by balancing the flux in the radial direction with the rate of consumption by the tissue O Is not included in the Krogh Cylinder assumptions
In order for VO2 to increase which of the following changes must occur: Group of answer choices A decrease in RER A decrease in heart rate An increase in cardiac output A decrease in extraction of oxygen from the blood none of the above all of the above
Blood doping has benefits for performance, but it has some consequences on the heart, short term and long term. Learning that blood doping adds red blood cells to the blood, what variable in the blood does this change and how does that affect blood flow? viscosity; increase blood flow resistance; decrease blood flow viscosity; decrease blood flow O resistance; increase blood flow
During hemorrhage: Baroreceptors- decreases or increase Sympathetic – decreases or increase Parasympathetic – decreases or increase Venous vasoconstriction – decreases or increase Venous return – decreases or increase Atrial pressure –decreases or increase 7. EDV - decreases or increase
which of the following Normal Sinus Rhythm Sinus Tachycardia Sinus Bradycardia Sinus arrest
Cocaine use causes vasoconstriction. Is this likely to increase or decrease blood pressure, and why? How might cocaine use affect respiration rate?
for its oxygen then it may die, forming rct. The severity of this condition depends on the precise location of the occlusion, which downstream tissues are involved, and how large an area of tissue dies. Use Figure 4.9 as a reference and list the flow of blood through both circuits in order, beginnng with the right atrium (don't forget to include the heart valves). 1. If an embolus breaks off in a systemic vein in the leg, it would be able to pass through: It would occlude: 2. If an embolus formed in the left ventricle, it would be able to pass through: 3. It would occlude: 4.
A person’s mean arterial pressure has decreased below normal. As a result of this, the person Would have an increase in sympathetic activity to compensate All of these are correct Is experiencing hypotension Will have a decrease in their baroreceptor firing
Increased blood flow to active muscle is due to O Increased local blood flow to active muscles Increased total body blood flow combined with increased local blood flow to active muscles Increased total body blood flow and decreased local blood flow to active muscle O Increased total body blood flow