Free Practice Quiz Question List

8 Integrated Physiological Regulation Online Quiz Questions

Use this free practice quiz with 20 questions to review 8 Integrated Physiological Regulation, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: Homeostasis keeps every regulated variable at one perfectly unchanging value.

A
True
B
False

Choose one

1 point

When body temperature rises, which response illustrates negative feedback?

A
The responses increase heat production so the temperature change is completed.
B
The responses promote heat loss, countering the temperature rise.
C
The responses prevent receptors from detecting temperature changes.
D
The responses amplify the temperature rise until it triggers a hormonal response.

Choose one

1 point

A body response must begin rapidly and target a specific effect. Which statement best explains why neural signaling is suited to this role?

A
Neural signals can produce rapid, targeted responses.
B
Hormones always act more rapidly than neural signals.
C
Neural signals travel only through the blood.
D
Hormones affect only the organ that released them.

Choose one

1 point

Which statement best describes positive feedback in a physiological process?

A
It holds the regulated variable at an exactly constant value.
B
It reduces a disturbance by reversing the original change.
C
It amplifies a change and can be useful during labor.
D
It prevents communication between the nervous and endocrine systems.

Written response

1 point

After water loss, which hormone increases water reabsorption by the kidneys?

Choose one

1 point

After a carbohydrate-containing meal, blood glucose rises. Which response helps bring it back toward its regulated range?

A
The kidneys release ADH to increase glucose reabsorption.
B
The respiratory system increases ventilation to remove glucose from blood.
C
The adrenal glands release aldosterone to move glucose into cells.
D
Pancreatic beta cells release insulin to promote glucose uptake and nutrient use or storage.

Choose one

1 point

How can the respiratory system contribute to blood pH regulation?

A
Changing ventilation directly removes hydrogen ions from the blood.
B
Changing ventilation alters blood carbon dioxide and thereby contributes to pH regulation.
C
Changing ventilation causes the kidneys to stop conserving bicarbonate.
D
Changing ventilation regulates pH only by increasing nutrient absorption.

Choose one

1 point

Blood pressure shifts suddenly. What role do pressure-sensitive receptors play in the rapid response?

A
They trigger the kidneys to stop regulating water and electrolytes.
B
They release insulin to restore blood pressure.
C
They help trigger rapid changes in heart activity and blood-vessel tone.
D
They increase digestion so nutrients can directly raise blood pressure.

Written response

1 point

Which body system regulates hydrogen-ion excretion and bicarbonate conservation over a longer period to help stabilize blood pH?

Choose one

1 point

During exercise, working muscles need more oxygen and nutrients and produce more carbon dioxide and heat. Which set of responses best supports those demands while helping maintain internal conditions?

A
Heart rate and blood flow adjust, breathing increases gas exchange, and signals help make stored fuels available.
B
Blood flow is redirected away from active muscles, and breathing slows to conserve oxygen.
C
Insulin stops all fuel use, while the kidneys immediately remove the extra heat.
D
Only the digestive system responds, increasing absorption to supply oxygen to the muscles.

Choose one

1 point

A hormone released by one organ needs to reach a target tissue elsewhere in the body. Which system transports that hormone through the body?

A
The cardiovascular system
B
The digestive system
C
The respiratory system
D
The renal system

Choose all

1 point

Select all functions attributed to the cardiovascular system.

A
Oxygen and carbon dioxide
B
Nutrients
C
Hormones
D
Heat
E
Metabolic wastes
F
Blood flow adjusted among organs according to their needs
G
Food breakdown in the digestive tract
H
Urine production

True or false

1 point

True or false: The digestive system breaks food down and absorbs nutrients and water.

A
True
B
False

True or false

1 point

True or false: Autonomic reflexes can adjust breathing and digestive activity without conscious direction.

A
True
B
False

Written response

1 point

Which organ system breaks food down and absorbs nutrients and water?

Written response

1 point

Name either fluid that absorbed nutrients can enter after leaving the intestine.

Fill in the blank

1 point

The cardiovascular system transports nutrients and hormones, and also carries metabolic .

Fill in the blank

1 point

The respiratory system removes carbon dioxide from the body and supplies .

Open ended

1 point

Explain how the digestive and cardiovascular systems contribute, in sequence, to getting nutrients from food to body tissues. Include where absorbed nutrients enter and what the cardiovascular system does.

Choose all

1 point

Select all statements that correctly describe a major organ-system role in physiological regulation.

A
The respiratory system supplies oxygen and removes carbon dioxide.
B
The cardiovascular system transports substances such as nutrients and hormones.
C
The digestive system breaks down food and absorbs nutrients and water.
D
The renal system regulates water and electrolytes and removes wastes in urine.
E
The digestive system transports hormones throughout the body.
F
The respiratory system produces urine to remove metabolic wastes.