Practice Quiz On Ingestive Behaviors! Trivia

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| By Gigi963

Gigi963

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Quizzes Created: 4 | Total Attempts: 2,230

Questions: 10 | Attempts: 462 | Updated: Mar 21, 2023

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Practice Quiz On Ingestive Behaviors! Trivia - Quiz

Food is one of the main sources of the nutrients we need in our body for it to function correctly. Being that we just covered the function of the organs in the digestive system, you must know about the ingestive behavior of the human body. The practice quiz below is designed to test out how much you remember. Give it a try!

Questions and Answers

1.

The process of _________ regulates the fluids that bathes our cells.
- A.
  
  Positive feedback
- B.
  
  Homeostasis
- C.
  
  Hemostasis
- D.
  
  Hypocolemia
- E.
  
  Osmogenesis
Correct Answer
B. Homeostasis

Explanation
Homeostasis is the process that regulates the fluids that bathe our cells. It is responsible for maintaining a stable internal environment within our bodies by continuously adjusting various physiological processes. This ensures that the body's temperature, pH levels, and fluid balance remain within a narrow range, allowing cells to function optimally. Positive feedback, hemostasis, hypocolemia, and osmogenesis do not directly regulate the fluids that bathe our cells, making them incorrect options.

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2.

The optimal value of the system variable in a homeostatic system is termed the ______.
- A.
  
  Correctional mechanism
- B.
  
  Thermostat
- C.
  
  Set point
- D.
  
  Detector
- E.
  
  Homeostatic variable
Correct Answer
C. Set point

Explanation
The optimal value of the system variable in a homeostatic system is referred to as the set point. This is the desired or target value that the system aims to maintain. It acts as a reference point for the correctional mechanisms in the system to make adjustments and bring the variable back to the set point when it deviates from it. The set point is crucial for maintaining stability and balance in the system.

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3.

Which of the following is the most essential element of a regulatory system?
- A.
  
  Satiety mechanisms
- B.
  
  Positive feedback
- C.
  
  Anticipatory
- D.
  
  Negative feedback
- E.
  
  Ingestive mechanisms
Correct Answer
D. Negative feedback

Explanation
Negative feedback is the most essential element of a regulatory system because it helps maintain homeostasis by counteracting any changes or deviations from the desired set point. It works by detecting and responding to deviations, then initiating corrective actions to bring the system back to its optimal state. This self-regulating mechanism ensures stability and balance in the body's physiological processes.

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4.

Osmorecptors are specialized neurons that detect _______.
- A.
  
  Changes in solute concentration of the interstitial fluid
- B.
  
  Osmotic pressure within the blood plasma
- C.
  
  Angiotensin concentration in the blood
- D.
  
  The concentration of renin within the blood
- E.
  
  Blood plasma solute concentration
Correct Answer
A. Changes in solute concentration of the interstitial fluid

Explanation
Osmoreceptors are specialized neurons that detect changes in solute concentration of the interstitial fluid. These receptors are responsible for monitoring the osmotic balance in the body and play a crucial role in regulating fluid and electrolyte balance. When there is a change in the solute concentration of the interstitial fluid, osmoreceptors send signals to the brain, which then triggers appropriate responses such as thirst or the release of antidiuretic hormone (ADH) to maintain homeostasis. Therefore, the correct answer is changes in solute concentration of the interstitial fluid.

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5.

Which of the following is a strong stimulus for producing osmometric thirst?
- A.
  
  Evaporation from the lungs during the winter months.
- B.
  
  Vomiting during illness,
- C.
  
  Loss of blood after an automobile trauma.
- D.
  
  Ingestion of a bag of salted potato chips.
- E.
  
  A and B are correct.
Correct Answer
D. Ingestion of a bag of salted potato chips.

Explanation
Ingestion of a bag of salted potato chips is a strong stimulus for producing osmometric thirst because salted potato chips contain a high concentration of salt. Consuming a large amount of salt increases the osmolarity of the blood, which triggers the release of antidiuretic hormone (ADH) from the hypothalamus. ADH acts on the kidneys to reabsorb water, leading to an increase in water intake and thirst. This response helps to restore the body's water balance and maintain proper hydration levels.

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6.

Research by Egan and others has suggested that osmoreceptors are located within the _________.
- A.
  
  Amygdala
- B.
  
  Medial hypothalamus
- C.
  
  Cerebral aqueduct
- D.
  
  Medial orbitofrontal cortex
- E.
  
  Anteroventral tip of the third ventricle
Correct Answer
E. Anteroventral tip of the third ventricle

Explanation
Research by Egan and others has suggested that osmoreceptors, which are responsible for detecting changes in osmotic pressure, are located within the anteroventral tip of the third ventricle.

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7.

Which of the following is a potent stimulus for producing hypovelemia, but not osmometric thirst?
- A.
  
  Loss of fluid volume from brain cells.
- B.
  
  Vomiting during illness
- C.
  
  Loss of blood after an automobile trauma
- D.
  
  Ingestion of a bag of salted potato chips
- E.
  
  B and C are correct
Correct Answer
E. B and C are correct

Explanation
Loss of blood after an automobile trauma and vomiting during illness are potent stimuli for producing hypovolemia, but not osmometric thirst. Hypovolemia refers to a decrease in blood volume, which can occur due to fluid loss from the body, such as from bleeding or vomiting. Osmometric thirst, on the other hand, is triggered by an increase in the concentration of solutes in the body fluids. Ingestion of a bag of salted potato chips would increase the osmolarity of the body fluids, potentially triggering osmometric thirst. Therefore, options B and C are correct because they specifically mention stimuli that lead to hypovolemia rather than osmometric thirst.

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8.

Which of the following is a known physiological effect of Angiotensin II?
- A.
  
  Consumption of water.
- B.
  
  Increased release of hormones that cause the kidneys to conserve water and salt.
- C.
  
  Increased blood pressure.
- D.
  
  Consumption of salt.
- E.
  
  All of the above are correct.
Correct Answer
E. All of the above are correct.

Explanation
Angiotensin II is known to have multiple physiological effects. It can cause an increased release of hormones that signal the kidneys to conserve water and salt, leading to decreased urine output. This hormone release helps to maintain fluid and electrolyte balance in the body. Angiotensin II can also increase blood pressure by constricting blood vessels, which helps to regulate blood flow and maintain adequate perfusion to vital organs. Additionally, angiotensin II can stimulate thirst, leading to increased water consumption. Therefore, all of the given options are correct as they describe known physiological effects of Angiotensin II.

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9.

Eating a salty meal induces volumetric thirst.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Eating a salty meal actually induces osmotic thirst, not volumetric thirst. Osmotic thirst is caused by an increase in the concentration of solutes in the body, such as salt, which leads to a need for water to dilute the solutes. Volumetric thirst, on the other hand, is caused by a decrease in the volume of bodily fluids. Therefore, the statement is false.

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10.

Loss of blood, vomiting, or diarrhea can result in volumetric thirst.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Loss of blood, vomiting, or diarrhea can lead to a decrease in the volume of fluids in the body, causing dehydration. When the body experiences a decrease in fluid volume, it triggers a physiological response known as volumetric thirst. This type of thirst is characterized by a desire to drink fluids in order to replenish the lost volume and restore the body's fluid balance. Therefore, the statement is true.

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Current Version
Mar 21, 2023

Quiz Edited by
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Nov 02, 2010

Quiz Created by
Gigi963

Practice Quiz On Ingestive Behaviors! Trivia

The process of _________ regulates the fluids that bathes our cells.

The optimal value of the system variable in a homeostatic system is termed the ______.

Which of the following is the most essential element of a regulatory system?

Osmorecptors are specialized neurons that detect _______.

Which of the following is a strong stimulus for producing osmometric thirst?

Research by Egan and others has suggested that osmoreceptors are located within the _________.

Which of the following is a potent stimulus for producing hypovelemia, but not osmometric thirst?

Which of the following is a known physiological effect of Angiotensin II?

Eating a salty meal induces volumetric thirst.

Loss of blood, vomiting, or diarrhea can result in volumetric thirst.