Test Bank For Guyton and Hall Textbook of Medical Physiology (Guyton Physiology) 15th Edition.By John E. Hall . Latest Edition 2026

,TEST BANK FOR g g



Guyton and Hall Textbook of Medical Physiology (Guyton Physiology) 14th
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Edition
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Chapter 01: Functional Organization of the Human Body and Control of the ―Internal
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Environment‖
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Hall: Guyton and Hall Textbook of Medical Physiology, 14th Edition
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MULTIPLE CHOICE g




1. Which of the following statements about homeostasis is incorrect?
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a. It refers to the maintenance of a stable internal environment for the body.
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b. Homeostatic mechanisms do not operate in diseases. g g g g g g


c. Homeostasis requires integrated actions of the cells, tissues, organs, and multiple
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nervous, hormonal, and local control systems.
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d. Homeostatic compensations that begin after a major environmental challenge may
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contribute to abnormalities of body function. g g g g g




ANS: B g




2. What is the most abundant type of cell in the human body?
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a. Neuron
b. Epithelial cell g


c. Red blood cell g g


d. White blood cell g g


e. Vascular smooth muscle cell g g g


f. Skeletal muscle cell g g




ANS: C g




3. The most abundant substance in the human body and the approximate percentage of that
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substance in the body is which of the following?
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a. Protein, 30% g


b. Protein, 60% g


c. Water, 30% g


d. Water, 60% g


e. Carbohydrate, 30% g


f. Carbohydrate, 60% g




ANS: D g




4. If the feedback gain of a control system is
g g 2.0, this means that the system is
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a. a negative feedback system capable of correcting 1/2 of the initial disturbance to
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the system. g


b. a negative feedback system capable of correcting 2/3 of the initial disturbance to
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the system. g


c. a negative feedback system capable of correcting 3/4 of the initial disturbance to
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, the system. g


d. a positive feedback system capable of correcting 1/2 of the initial disturbance to
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the system. g


e. a positive feedback system capable of correcting 2/3 of the initial disturbance to
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the system. g


f. a positive feedback system capable of correcting 3/4 of the initial disturbance to
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the system. g




ANS: B g




5. Which of the following substances has the highest extracellular fluid to intracellular fluid
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concentration ratio for most mammalian cells?
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a. Sodium ions g


b. Potassium ions g


c. Carbon dioxide g


d. Glucose
e. Protein
ANS: A g




6. Exchange of substances between the cardiovascular system and the interstitial fluid occurs
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gmainly in which of the following?
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a. Arteries
b. Arterioles
c. Capillaries
d. Venules
e. Veins
ANS: C g




7. What is the approximate distance from the capillaries to most cells of the body?
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a. Less than 50 angstroms g g g


b. Less than 50 microns g g g


c. Less than 50 millimeters g g g


d. Less than 100 angstroms g g g


e. Less than 100 microns g g g


f. Less than 100 millimeters g g g




ANS: A g




8. When a person is at rest, how much time is required for the blood in the circulation to
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gtraverse the entire circulatory circuit?
g g g g


a. 1 second
g


b. 1 minute
g


c. 3 minutes
g


d. 4 minutes
g


e. 5 minutes
g




ANS: B g




9. The type of control system that can sometimes cause instability and vicious cycles is
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gcalled

, a. negative feedback. g


b. feed-forward control. g


c. positive feedback. g


d. adaptive feedback. g


e. delayed negative feedback. g g




ANS: C g




10. Which of the following is an example of positive feedback in the body?
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a. Return of blood pressure toward normal after a hemorrhage
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b. Generation of action potentials in nerves g g g g g


c. Increased respiration rate caused by accumulation of carbon dioxide in the blood
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d. Decreased sympathetic nervous system activity that occurs in response to
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increased blood pressure g g




ANS: B g




11. Which of the following is an example of a ―feed-forward‖ control system?
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a. The arterial baroreceptor system
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b. The progressive nature of uterine contractions during childbirth
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c. Control of skeletal muscle movements by the brain
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d. Generation of an action potential g g g g




ANS: C g




12. Which of the following is an example of negative feedback?
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Example 1: Arterial baroreceptor control of blood pressure
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Example 2: Excitation of the respiratory center by increased blood carbon dioxide
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concentration
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Example 3: Hemorrhagic shock caused by severe blood loss
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a. Example 1 only g g


b. Example 2 only g g


c. Example 3 only g g


d. Examples 1 and 2, but not 3 g g g g g g


e. Examples 1, 2, and 3 g g g g




ANS: D g




Chapter 02: The Cell and Its Functions
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Hall: Guyton and Hall Textbook of Medical Physiology, 14th Edition
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MULTIPLE CHOICE g




1. The most abundant cell membrane lipids are
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a. sphingolipids.
b. phospholipids.
c. cholesterol.
d. triglycerides.
e. sterols.