Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

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Answer 1

Question

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

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Answer 2

Question

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

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Answer 3

Question

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

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Answer 4

Question

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

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Answer 5

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

Answer 6

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

Answer 7

Chapter 1, Problem 1E

Summary Introduction

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Answer 8

Expert Solution & Answer

Answer to Problem 1E

Solution:

The correct answer is option (e).

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation/justification for the correct answer:

During childbirth, the uterus undergoes contractions in order to push the fetus out of the cervix. This is aided by the action of the hormone oxytocin. It is known that uterine contractions during parturition induce the production of oxytocin. Oxytocin functions to intensify these contractions and help the fetus to move out of the cervix with ease. Hence, oxytocin sets up a positive feedback loop by increasing the uterine contraction. So, the correct answer is option (e).

Explanation for the incorrect answer:

Option (a) states that in conditions of increased acidity suppresses the cells lining the stomach walls to produce more acid. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect option.

Option (b) states that a rise in blood pressure Triggers the elimination of water in the urine, which reduces blood pressure. This is an example of negative feedback as the response to the change is in reverse direction to the cause. So, this is an incorrect answer.

Option (c) states that an risein the concentration of H+in blood causes an risein excretion in urine. This is a case of negative feedback as elimination in urine reduces the concentration of H+in blood. Hence this option is incorrect.

Option (d) states that an risein carbon dioxide concentration in the blood Triggers breathing, which increases the rate at which carbon dioxide is eliminated from the body. Elimination reduces the carbon dioxide concentration in blood hence it is negative feedback. So this option is incorrect.

Answer 12

Conclusion

Among the given options option (e) Contraction of the uterus push the fetus against the cervix that triggers the release of oxytocin in the bloodstream; oxytocin the Triggers stronger contraction of the uterus. is an example of positive feedback.

Answer 13

Ch. 1.1 - Define physiology Ch. 1.1 - Name and describe the four basis types of cells...Ch. 1.1 - Name the ten organ systems, and briefly state the...Ch. 1.1 - What is the difference between absorption and...Ch. 1.1 - Why is extracellular fluid referred to as the...Ch. 1.1 - Prob. 1.2.3QC Ch. 1.2 - Prob. 1CTQ Ch. 1.2 - What are the roles of blood pressure and sweat...Ch. 1.2 - Prob. 3CTQ Ch. 1.2 - Define homeostasis, and explain how it enables...

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Videos

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Answer to Problem 1E

Explanation of Solution

Want to see more full solutions like this?

Chapter 1 Solutions

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Videos

Introduction: Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.

Answer to Problem 1E

Explanation of Solution

Want to see more full solutions like this?

Chapter 1 Solutions

Introduction:

Positive feedback is a physiological phenomenon in which a change in the system’s internal condition generates a response in the same direction as the cause of the change. In other words, positive feedback intensifies a physiological condition.