Question 1

Which of the following best explains why exercise can help reduce the necessity for insulin use in people with type II diabetes mellitus?

Accepted Answer

A)  Exercise upregulates insulin receptors. 
B)  Exercise uses up blood sugar before its levels can become elevated. 
C)  Exercise reduces cortisol levels. 
D)  Exercise doesn't help type II diabetes. 
A)  Exercise upregulates insulin receptors. 
B)  Exercise uses up blood sugar before its levels can become elevated. 
C)  Exercise reduces cortisol levels. 
D)  Exercise doesn't help type II diabetes.

Question 2

Benefits of regular exercise include all of the following, EXCEPT

Accepted Answer

A)  lowered blood pressure. 
B)  increased plasma levels of HDL (high-density lipoproteins). 
C)  increased levels of LDL (low-density lipoproteins). 
D)  decreased risk of heart attack. 
E)  decreased plasma levels of triglycerides. 
A)  lowered blood pressure. 
B)  increased plasma levels of HDL (high-density lipoproteins). 
C)  increased levels of LDL (low-density lipoproteins). 
D)  decreased risk of heart attack. 
E)  decreased plasma levels of triglycerides.

Question 3

During exercise, skeletal muscle receives approximately ________% of blood flow.Where is this blood redistributed from?

Accepted Answer

88; this blood is re

Question 4

The role of phosphocreatine is to

Accepted Answer

A)  store energy. 
B)  store oxygen. 
C)  release energy. 
D)  transfer energy. 
E)  provide a substrate for gluconeogenesis. 
A)  store energy. 
B)  store oxygen. 
C)  release energy. 
D)  transfer energy. 
E)  provide a substrate for gluconeogenesis.

Question 5

Sabrina's resting heart rate is 80 beats per minute, and her resting stroke volume is 50 mL per beat.What is her cardiac output? When she exercises, her heart rate increases to 100 beats per minute and her stroke volume increases to 55 mL per beat.What happens to her cardiac output? What is the advantage of the lower relative increase in stroke volume?

Accepted Answer

CO = HR × SV.CO = 80 beats/min × 50 mL/b

Question 6

Redistribution of blood flow during exercise results from

Accepted Answer

A)  vasodilation only. 
B)  vasoconstriction only. 
C)  vasodilation in skeletal muscle and vasoconstriction in viscera. 
D)  vasoconstriction in skeletal muscle and vasodilation in viscera. 
A)  vasodilation only. 
B)  vasoconstriction only. 
C)  vasodilation in skeletal muscle and vasoconstriction in viscera. 
D)  vasoconstriction in skeletal muscle and vasodilation in viscera.

Question 7

The rise in body temperature triggers two thermoregulatory mechanisms: ________ and ________.

Accepted Answer

sweating,

Question 8

The adaption of the body to repeated exercise in hot environments occurs through a process called ________.

Accepted Answer

The answer of The adaption of the body to repeated...

Question 9

Exercise hyperventilation results from signals from

Accepted Answer

A)  muscle and joint mechanoreceptors and proprioceptors only. 
B)  the carotid body chemoreceptors only. 
C)  activating pulmonary stretch receptors only. 
D)  muscle and joint mechanoreceptors and proprioceptors and from the carotid body chemoreceptors. 
E)  muscle and joint mechanoreceptors and proprioceptors, the carotid body chemoreceptors, and activating pulmonary stretch receptors. 
A)  muscle and joint mechanoreceptors and proprioceptors only. 
B)  the carotid body chemoreceptors only. 
C)  activating pulmonary stretch receptors only. 
D)  muscle and joint mechanoreceptors and proprioceptors and from the carotid body chemoreceptors. 
E)  muscle and joint mechanoreceptors and proprioceptors, the carotid body chemoreceptors, and activating pulmonary stretch receptors.

Question 10

When the muscle has used up its stored ATP and glucose but continues to have a plentiful supply of oxygen, which process will it turn to next to produce more energy for muscle contraction?

Accepted Answer

A)  protein catabolism 
B)  fatty acid oxidation 
C)  fermentation of glucose to lactate 
D)  ketosis 
A)  protein catabolism 
B)  fatty acid oxidation 
C)  fermentation of glucose to lactate 
D)  ketosis

Question 11

In resistance exercise, such as strength training, muscles rely heavily on ________ energy production.

Accepted Answer

A)  anaerobic 
B)  aerobic 
A)  anaerobic 
B)  aerobic

Question 12

Match the response to the description.
-relative depression of immune system with change from moderate to strenuous exercise

Accepted Answer

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

Question 13

Why is the normal baroreceptor reflex absent during exercise?

Accepted Answer

There are several th

Question 14

Individuals with McArdle's disease cannot break down glycogen.How would this affect substrate utilization during exercise?

Accepted Answer

These individuals cannot rely on glycoge

Question 15

The largest metabolic reserves for the average adult are stored as

Accepted Answer

A)  carbohydrates. 
B)  proteins. 
C)  amino acids. 
D)  triglycerides. 
E)  fatty acids. 
A)  carbohydrates. 
B)  proteins. 
C)  amino acids. 
D)  triglycerides. 
E)  fatty acids.

Question 16

Which of the following hormones increase(s)in concentration in the plasma during exercise?

Accepted Answer

A)  cortisol 
B)  catecholamines 
C)  insulin 
D)  cortisol and catecholamines 
E)  cortisol, catecholamines, and insulin 
A)  cortisol 
B)  catecholamines 
C)  insulin 
D)  cortisol and catecholamines 
E)  cortisol, catecholamines, and insulin

Question 17

In addition to the number and type of muscle fibers in a muscle, peak athletic performance requires

Accepted Answer

A)  a good blood supply and system of blood delivery. 
B)  a well-developed respiratory system. 
C)  adequate numbers of muscle mitochondria. 
D)  good supplies of nutrients. 
E)  All of the answers are correct. 
A)  a good blood supply and system of blood delivery. 
B)  a well-developed respiratory system. 
C)  adequate numbers of muscle mitochondria. 
D)  good supplies of nutrients. 
E)  All of the answers are correct.

Question 18

Athletes with chronic energy deficit (energy output > energy intake)tend to have high levels of cortisol.Do you expect their immune systems would be better than those who are sedentary? Explain.

Accepted Answer

People who exercise moderately have bett

Question 19

During mild to moderate exercise, arterial pH, PO₂, and PCO₂ are

Accepted Answer

A)  nearly normal. 
B)  nearly half of normal. 
C)  almost twice as high as normal. 
A)  nearly normal. 
B)  nearly half of normal. 
C)  almost twice as high as normal.

Question 20

During the first 15 seconds of intense exercise, such as sprinting or power lifting, most of the energy is provided by

Accepted Answer

A)  fat oxidation. 
B)  carbohydrate oxidation. 
C)  ATP in muscle fiber. 
D)  phosphocreatine. 
E)  ATP in muscle fiber and phosphocreatine. 
A)  fat oxidation. 
B)  carbohydrate oxidation. 
C)  ATP in muscle fiber. 
D)  phosphocreatine. 
E)  ATP in muscle fiber and phosphocreatine.

Exam 25: Integrative Physiology III: Exercise

Which of the following best explains why exercise can help reduce the necessity for insulin use in people with type II diabetes mellitus?

Benefits of regular exercise include all of the following, EXCEPT

During exercise, skeletal muscle receives approximately ________% of blood flow.Where is this blood redistributed from?

The role of phosphocreatine is to

Redistribution of blood flow during exercise results from

The rise in body temperature triggers two thermoregulatory mechanisms: ________ and ________.

The adaption of the body to repeated exercise in hot environments occurs through a process called ________.

Exercise hyperventilation results from signals from

When the muscle has used up its stored ATP and glucose but continues to have a plentiful supply of oxygen, which process will it turn to next to produce more energy for muscle contraction?

In resistance exercise, such as strength training, muscles rely heavily on ________ energy production.

Match the response to the description. -relative depression of immune system with change from moderate to strenuous exercise

Why is the normal baroreceptor reflex absent during exercise?

Individuals with McArdle's disease cannot break down glycogen.How would this affect substrate utilization during exercise?

The largest metabolic reserves for the average adult are stored as

Which of the following hormones increase(s)in concentration in the plasma during exercise?

In addition to the number and type of muscle fibers in a muscle, peak athletic performance requires

Athletes with chronic energy deficit (energy output > energy intake)tend to have high levels of cortisol.Do you expect their immune systems would be better than those who are sedentary? Explain.

During mild to moderate exercise, arterial pH, PO₂, and PCO₂ are

During the first 15 seconds of intense exercise, such as sprinting or power lifting, most of the energy is provided by

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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The rise in body temperature triggers two thermoregulatory mechanisms: and .