Chapter 20 The Circulatory System: Blood Vessels and Circulation

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Chapter 20  The Circulatory System: Blood Vessels and Circulation

 

 

Complete chapter Questions And Answers
 

Sample Questions

 

 

True / False Questions

  1. Blood flow through a capillary bed is regulated by precapillary sphincters.

    TRUE

    Accessibility: Keyboard Navigation Blooms Level: 2. Understand Gradable: automatic HAPS Objective: K14.09b Explain the role of the precapillary sphincter in autoregulation. HAPS Topic: Module K14 Blood pressure and its functional interrelationships with cardiac output, peripheral resistance, and hemodynamics. Learning Outcome: 20.01b Describe the types of arteries, capillaries, and veins. Section: 20.01 Topic: Anatomy and functional roles of blood vessel types

  2. Large veins, medium veins, and venules have valves to prevent the backflow of blood.

    FALSE

    Accessibility: Keyboard Navigation Blooms Level: 1. Remember Gradable: automatic HAPS Objective: K12.01 Compare and contrast the structure of arteries and veins and arterioles and venules. HAPS Topic: Module K12 Anatomy and functional roles of the different types of blood vessels. Learning Outcome: 20.01b Describe the types of arteries, capillaries, and veins. Section: 20.01 Topic: Anatomy and functional roles of blood vessel types

  3. Blood flow is pulsatile in arteries and veins, but it is steady in capillaries.

    FALSE

    Accessibility: Keyboard Navigation Blooms Level: 1. Remember Gradable: automatic HAPS Objective: K12.02b Correlate the anatomical structure of each type of blood vessel with its function. HAPS Topic: Module K12 Anatomy and functional roles of the different types of blood vessels. Learning Outcome: 20.02a Explain the relationship between blood pressure, resistance, and flow. Section: 20.02 Topic: Blood pressure, peripheral resistance, and hemodynamics

  4. Vasomotion can raise or lower blood pressure throughout the body.

    TRUE

    Accessibility: Keyboard Navigation Blooms Level: 2. Understand Gradable: automatic

HAPS Objective: K14.03 List the local, hormonal and neuronal factors that affect peripheral resistance and explain the importance of each. HAPS Topic: Module K14 Blood pressure and its functional interrelationships with cardiac output, peripheral resistance, and hemodynamics. Learning Outcome: 20.02d Explain how vessel diameter influences blood pressure and flow. Section: 20.02

20-1
Copyright © 2018 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education.

5.

Increased capillary filtration, reduced reabsorption, or obstruction of lymphatic drainage can lead to edema.

TRUE

Accessibility: Keyboard Navigation Blooms Level: 3. Apply Gradable: automatic HAPS Objective: K16.02 Predict the types of problems that would occur in the body if the cardiovascular system could not maintain homeostasis. HAPS Topic: Module K16 Predictions related to homeostatic imbalance, including disease states and disorders. Learning Outcome: 20.03c Describe the causes and effects of edema. Section: 20.03 Topic: Capillary exchange

Most tissue fluid is reabsorbed by the lymphatic system.

FALSE

6.

7.

Decompensated shock is normally corrected by the body’s homeostatic mechanisms.

FALSE

Accessibility: Keyboard Navigation Blooms Level: 2. Understand Gradable: automatic HAPS Objective: K16.01 Predict factors or situations affecting the cardiovascular system that could disrupt homeostasis. HAPS Topic: Module K16 Predictions related to homeostatic imbalance, including disease states and disorders. Learning Outcome: 20.04d Name and describe the stages of shock. Section: 20.04 Topic: Venous blood return

The pulmonary circuit is the only route in which arteries carry less oxygen than veins.

TRUE

Accessibility: Keyboard Navigation Blooms Level: 2. Understand Gradable: automatic HAPS Objective: K14.07c Describe how net filtration pressure across the capillary wall determines movement of fluid across the capillary wall. HAPS Topic: Module K14 Blood pressure and its functional interrelationships with cardiac output, peripheral resistance, and hemodynamics. Learning Outcome: 20.03b Describe and calculate the forces that enable capillaries to give off and reabsorb fluid. Section: 20.03 Topic: Capillary exchange

Topic: Blood pressure, peripheral resistance, and hemodynamics

8.

Accessibility: Keyboard Navigation Blooms Level: 1. Remember Gradable: automatic HAPS Objective: K13.01b State which blood vessel type carries oxygen-rich blood and which type carries oxygen-poor blood in systemic and pulmonary circuits. HAPS Topic: Module K13 Pattern of blood circulation throughout the body, including systemic, pulmonary, coronary, hepatic portal, and fetal circulations. Learning Outcome: 20.05d Contrast the blood pressure of the pulmonary circuit with that of the systemic circuit, and explain why the difference is important in pulmonary function. Section: 20.05 Topic: Pulmonary blood circulation

20-2
Copyright © 2018 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education.

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