Question 1

Match the response to the description.
-arterial PO₂ during exercise compared to rest

Accepted Answer

A) increase 
B) decrease 
C) no change 
A) increase 
B) decrease 
C) no change C

Question 2

When the concentration of sodium ion in the ECF increases,

Accepted Answer

A)  osmoreceptors are stimulated. 
B)  there is a decreased thirst. 
C)  ADH secretion decreases. 
D)  aldosterone secretion increases. 
E)  there is an increase in the volume of urine produced. 
A)  osmoreceptors are stimulated. 
B)  there is a decreased thirst. 
C)  ADH secretion decreases. 
D)  aldosterone secretion increases. 
E)  there is an increase in the volume of urine produced. A

Question 3

Susie has hyperthyroidism.How might this affect ATP production during exercise?

Accepted Answer

Normally, only 20-25% of energy released during metabolism is converted to ATP.With hyperthyroidism, the oxidative phosphorylation is uncoupled, resulting in increased heat production.Therefore, this individual will be less efficient in ATP production.(Energy released during metabolism = Heat + ATP production).See the "Temperature Regulation During Exercise"

Question 4

During exercise, skeletal muscle

Accepted Answer

A)  vasodilation decreases peripheral resistance to blood flow. 
B)  vasodilation increases peripheral resistance to blood flow. 
C)  vasoconstriction decreases peripheral resistance to blood flow. 
D)  vasoconstriction increases peripheral resistance to blood flow. 
E)  None of the answers are correct. 
A)  vasodilation decreases peripheral resistance to blood flow. 
B)  vasodilation increases peripheral resistance to blood flow. 
C)  vasoconstriction decreases peripheral resistance to blood flow. 
D)  vasoconstriction increases peripheral resistance to blood flow. 
E)  None of the answers are correct.

Question 5

During exercise, the most significant factor affecting the pH of body tissues is the production of

Accepted Answer

A)  lactic acid. 
B)  ketone bodies. 
C)  organic acids. 
D)  carbon dioxide. 
E)  hydrochloric acid. 
A)  lactic acid. 
B)  ketone bodies. 
C)  organic acids. 
D)  carbon dioxide. 
E)  hydrochloric acid.

Question 6

List and briefly discuss advantages or enhancements to metabolism brought about through aerobic exercise.

Accepted Answer

Exercise lowers the risk of cardiovascul

Question 7

Match the response to the description.
-plasma glucose concentration 30 minutes after glucose ingestion in diabetics who exercise, compared to those who don't

Accepted Answer

A) increase 
B) decrease 
C) no change 
A) increase 
B) decrease 
C) no change

Question 8

What two effects does sympathetic stimulation have on the heart during exercise?

Accepted Answer

1.increase

Question 9

During increased exercise,

Accepted Answer

A)  vasoconstriction occurs at the active skeletal muscles. 
B)  venous return increases. 
C)  cardiac output decreases. 
D)  stroke volume decreases. 
E)  All of the answers are correct. 
A)  vasoconstriction occurs at the active skeletal muscles. 
B)  venous return increases. 
C)  cardiac output decreases. 
D)  stroke volume decreases. 
E)  All of the answers are correct.

Question 10

Explain the advantages and disadvantages of glycolytic metabolism.

Accepted Answer

An advantage to glycolytic metabolism is

Question 11

Fat stores are used for energy only after muscles have depleted their carbohydrate energy stores.

Accepted Answer

A) True 
 B)False

Question 12

Why and how does intracellular K⁺ become depleted with exercise?

Accepted Answer

Potassium exits nerve and musc

Question 13

With acclimatization, the body begins to do a better job of conserving

Accepted Answer

A)  water only. 
B)  heat only. 
C)  salt only. 
D)  water and heat only. 
E)  water, heat, and salt. 
A)  water only. 
B)  heat only. 
C)  salt only. 
D)  water and heat only. 
E)  water, heat, and salt.

Question 14

The substance in muscle fiber cytoplasm that directly powers muscle contraction is

Accepted Answer

A)  glucose. 
B)  fatty acids. 
C)  ATP. 
D)  phosphocreatine. 
A)  glucose. 
B)  fatty acids. 
C)  ATP. 
D)  phosphocreatine.

Question 15

Discuss changes in the cardiovascular and pulmonary systems that result from conditioning for exercise.

Accepted Answer

Pulmonary ventilation rate increases imm

Question 16

Based on what you learned in the chapter on control of blood flow and pressure, what must happen to blood flow to meet the metabolic demands of exercising skeletal muscle? How is this accomplished? What is the predicted effect of this change on systemic blood pressure during exercise? What are the changes in heart function during exercise, and what effects should those changes have on systemic blood pressure? What actually happens to systemic blood pressure during exercise? Explain the apparent contradictions.

Accepted Answer

Increased metabolic demands of skeletal

Question 17

Dehydration causes

Accepted Answer

A)  fluid to shift from the ECF to the ICF. 
B)  decreased secretion of ADH. 
C)  increased thirst. 
D)  increased levels of aldosterone. 
E)  All of the answers are correct. 
A)  fluid to shift from the ECF to the ICF. 
B)  decreased secretion of ADH. 
C)  increased thirst. 
D)  increased levels of aldosterone. 
E)  All of the answers are correct.

Question 18

It takes approximately ________ of aerobic exercise to begin mobilizing fats from adipose tissue.

Accepted Answer

A)  30 seconds 
B)  10 minutes 
C)  30 minutes 
D)  45 minutes 
E)  60 minutes 
A)  30 seconds 
B)  10 minutes 
C)  30 minutes 
D)  45 minutes 
E)  60 minutes

Question 19

Cortisol, the catecholamines, and growth hormone do all of the following, EXCEPT

Accepted Answer

A)  mobilize glycogen from the liver. 
B)  raise plasma glucose levels. 
C)  promote the conversion of triglycerides to glycerol and fatty acids. 
D)  enhance deposition of fat in adipose tissue. 
A)  mobilize glycogen from the liver. 
B)  raise plasma glucose levels. 
C)  promote the conversion of triglycerides to glycerol and fatty acids. 
D)  enhance deposition of fat in adipose tissue.

Question 20

There is clear evidence that strenuous exercise on a regular basis enhances the immune system.

Accepted Answer

A) True 
 B)False

Exam 25: Integrative Physiology III: Exercise

Match the response to the description. -arterial PO₂ during exercise compared to rest

When the concentration of sodium ion in the ECF increases,

Susie has hyperthyroidism.How might this affect ATP production during exercise?

During exercise, skeletal muscle

During exercise, the most significant factor affecting the pH of body tissues is the production of

List and briefly discuss advantages or enhancements to metabolism brought about through aerobic exercise.

Match the response to the description. -plasma glucose concentration 30 minutes after glucose ingestion in diabetics who exercise, compared to those who don't

What two effects does sympathetic stimulation have on the heart during exercise?

During increased exercise,

Explain the advantages and disadvantages of glycolytic metabolism.

Fat stores are used for energy only after muscles have depleted their carbohydrate energy stores.

Why and how does intracellular K⁺ become depleted with exercise?

With acclimatization, the body begins to do a better job of conserving

The substance in muscle fiber cytoplasm that directly powers muscle contraction is

Discuss changes in the cardiovascular and pulmonary systems that result from conditioning for exercise.

Dehydration causes

It takes approximately ________ of aerobic exercise to begin mobilizing fats from adipose tissue.

Cortisol, the catecholamines, and growth hormone do all of the following, EXCEPT

There is clear evidence that strenuous exercise on a regular basis enhances the immune system.

Introduction to Physiology

Molecular Interactions

Compartmentation: Cells and Tissues

Energy and Cellular Metabolism

Membrane Dynamics

Communication, Integration, and Homeostasis

Introduction to the Endocrine System

Neurons: Cellular and Network Properties

The Central Nervous System

Sensory Physiology

Efferent Division: Autonomic and Somatic Motor Control

Muscles

Integrative Physiology I: Control of Body Movement

Cardiovascular Physiology

Blood Flow and the Control of Blood Pressure

Blood

Mechanics of Breathing

Gas Exchange and Transport

The Kidneys

Integrative Physiology II: Fluid and Electrolyte Balance

The Digestive System

Metabolism and Energy Balance

Endocrine Control of Growth and Metabolism

The Immune System

Reproduction and Development

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