01
Choose one
1 point
Which statement best describes homeostasis?
Free Practice Quiz Question List
8 Integrated Regulation of Body Systems Online Quiz Questions
Use this free practice quiz with 20 questions to review 8 Integrated Regulation of Body Systems, test your knowledge, and prepare for your next test or exam.
20 questions
02
True or false
1 point
In a typical negative-feedback loop, the response diminishes as the regulated condition moves back toward its normal range.
- A
True
- B
False
03
Fill in the blank
1 point
Between meals, falling blood glucose stimulates pancreatic alpha cells to release , which signals the liver to release glucose.
04
Choose one
1 point
After a meal, blood glucose rises. Which response helps regulate that increase?
- A
Glucagon released by pancreatic alpha cells signals the liver to release glucose.
- B
ADH released from the posterior pituitary increases water reabsorption by the kidneys.
- C
Insulin released by pancreatic beta cells promotes glucose uptake and storage.
- D
Renin released by the kidneys causes the digestive system to absorb glucose.
05
Written response
1 point
During dehydration, which hormone abbreviation names the hormone that acts on the kidneys to increase water reabsorption?
06
True or false
1 point
During dehydration, hypothalamic osmoreceptors detect that blood has become more concentrated. True or false: this detection can help trigger both thirst and ADH release.
- A
True
- B
False
07
Choose all
1 point
During exercise, which responses described here help meet working muscles' increased demand? Select all correct choices.
- A
Sympathetic activity raises heart activity and redirects blood flow.
- B
Respiratory centers increase breathing in response to signals that include rising carbon dioxide and hydrogen-ion levels.
- C
Faster circulation and ventilation help deliver oxygen to tissues and remove carbon dioxide.
- D
Digestion must accelerate to immediately supply working muscles.
- E
The kidneys stop filtering blood during exercise.
08
Fill in the blank
1 point
In a typical negative-feedback loop, receptors detect a change and a control center processes the information; then act to oppose the change.
09
Choose all
1 point
Which statements correctly describe contributions of body systems to integrated regulation? Select all correct choices.
- A
The respiratory system helps regulate blood pH by adjusting ventilation.
- B
The kidneys contribute to acid–base balance.
- C
The cardiovascular system transports heat and materials between organs and tissues.
- D
The endocrine system releases hormones into the blood.
- E
The digestive system rapidly coordinates responses through neural signals.
10
Written response
1 point
What type of hypothalamic receptors detects increased blood concentration during dehydration?
11
Choose one
1 point
During acute psychological stress, which change is consistent with the body's coordinated response?
- A
Acute stress always increases digestion to maximize nutrient absorption immediately.
- B
During acute stress, digestion may be reduced temporarily while heart rate and breathing rise.
- C
Acute stress prevents the nervous and endocrine systems from interacting.
- D
Once stress begins, feedback mechanisms cannot help activity return toward resting levels.
12
Open ended
1 point
Explain one trade-off involved in regulating the body during strenuous activity, and describe why compensatory responses may not always restore internal conditions adequately.
13
Choose one
1 point
Which system carries hormones from the organs that release them to tissues where they act?
- A
The respiratory system
- B
The cardiovascular system
- C
The digestive system
- D
The nervous system
14
True or false
1 point
True or false: Homeostasis allows internal conditions to fluctuate within ranges compatible with normal cell function.
- A
True
- B
False
15
Choose one
1 point
After a meal, blood glucose rises. Which response helps bring it toward a suitable range?
- A
Glucagon, which signals the liver to release glucose
- B
Antidiuretic hormone, which increases kidney water reabsorption
- C
Insulin, which promotes glucose uptake and storage
- D
Renin, which initiates a pathway that helps conserve sodium and water
16
Written response
1 point
During dehydration, increased blood concentration helps trigger release of which hormone to increase water reabsorption by the kidneys?
17
Choose one
1 point
During exercise, working muscles produce more carbon dioxide and metabolic acids. Which response helps remove carbon dioxide and support blood pH regulation?
- A
Rising carbon dioxide and hydrogen-ion levels stimulate respiratory centers to increase breathing.
- B
Falling carbon dioxide levels cause the kidneys to increase ventilation.
- C
Rising oxygen levels cause the digestive system to increase breathing.
- D
Decreasing blood flow to the lungs signals the pancreas to increase ventilation.
18
Written response
1 point
Which brain region links nervous and endocrine regulation and helps control autonomic activity?
19
Choose one
1 point
In a typical negative-feedback loop, what happens to the response as a condition moves back toward its regulated range?
- A
The response grows stronger as the condition returns to its range.
- B
Receptors stop detecting changes once an effector acts.
- C
The control center keeps the response at maximum strength.
- D
The response diminishes as the condition moves back toward its regulated range.
20
Choose one
1 point
During acute psychological stress, why might digestion be temporarily reduced?
- A
Digestion increases because stress immediately requires more nutrient absorption.
- B
Digestion may be temporarily reduced while neural and endocrine signals prepare the body for increased demand.
- C
The kidneys stop regulating water to redirect all blood to the muscles.
- D
Hormonal signals cease so that the nervous system can act alone.