Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Question
Chapter 13, Problem 4AWK
Summary Introduction
To review:
The reason why the negative feedback loop is unable to prevent muscle contractions and pain during labor in a pregnant woman.
Introduction:
A pregnant woman may enter labor in the last week of gestation, which leads to the birth of the child. A series of events occur during the labor, which includes intense muscle contractions. These muscle contractions force the fetus from the uterus to the outside through the birth canal. The muscle contractions are extremely intense and painful.
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Students have asked these similar questions
Positive feedback mechanisms are beneficial, but they need to be
controlled. Discuss a scenario where if positive feedback was allowed to continue, the body might get damaged.
When you step outside in the cold, your body temperature decreases; which causes shivering or contractions of your muscles. In this example, the shivering or contracting of the muscles, is what part of the feedback loop?
Which of the following is an example of a negative feedback loop? a) shivering in response to a cold b)platelets responding to a cut c) childbirth d) lactation
Chapter 13 Solutions
Human Biology: Concepts and Current Issues
Ch. 13 - Would you be in favor of a federal ban on BPA from...Ch. 13 - Prob. 2QCCh. 13 - List the functions of the six hormones secreted by...Ch. 13 - Prob. 2CRCh. 13 - Prob. 3CRCh. 13 -
4. Define when you would call a norepinephrine a...Ch. 13 - Explain why a 30-year-old short person cannot be...Ch. 13 - Describe the function of the two hormones from the...Ch. 13 - Prob. 7CRCh. 13 - Prob. 8CR
Ch. 13 - Prob. 9CRCh. 13 - Prob. 10CRCh. 13 - _________ hormones enter target cells and bind to...Ch. 13 - Prob. 2TYCh. 13 - Prob. 3TYCh. 13 - Which two hormones most directly regulate...Ch. 13 - All of the following represent hormone pairs with...Ch. 13 - Prob. 6TYCh. 13 - Prob. 7TYCh. 13 - Prob. 8TYCh. 13 - Prob. 9TYCh. 13 - Prob. 10TYCh. 13 - Prob. 11TYCh. 13 -
12. Which of the following statements about...Ch. 13 - Prob. 13TYCh. 13 - Prob. 14TYCh. 13 - Which of the following would be triggered by a...Ch. 13 - Prob. 1AWKCh. 13 - Explain why an injection of epinephrine to combat...Ch. 13 - From what you read in section 13.5 draw the...Ch. 13 - Prob. 4AWKCh. 13 - Prob. 5AWKCh. 13 - A student finishes up the fall semester with...
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Similar questions
- Which of the following is not true for f negative feedback loops? A. In a negative loop, the response to the signal or stimulus decreases the original signal or stimulus. B. Negative feedback loops maintain homeostasis. C. Negative feedback loops are temporary. D. There are many more instances of negative feedback loops in the human body than positive feedback loops.arrow_forwardThe role of insulin is to signal the cells to uptake glucose from the blood. Is this a positive or negative feedback loop? Explain what would happen if the other type of feedback loop were to occur.arrow_forwardWhy is feedback important in the body? Give an example on how our body uses the pairing of stimulus and response.arrow_forward
- What does negative feedback do? a. It establishes a set point. b. It changes the set point. c. It eliminates the set point. d. It reduces discrepancies from a set point.arrow_forwardThe hormone insulin enhances the transport of glucose (sugar) from the blood into most body cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct? A decrease in blood glucose concentration stimulates insulin secretion, which in turn further towers blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn lowers blood glucose concentration. A decrease in blood glucose concentration stimulates insulin secretion, which in turn increases blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn further increases blood glucose concentration. None of the preceding is correct.arrow_forwardWhy do positive feedback systems that are part of a normal physiological response include some mechanism that terminates the system?arrow_forward
- Describe negative feedback inhibition.arrow_forwardPositive feedback processes invloves : a) Work in anticipation of changes in regulated variable b) Lead to instability of the regulated variable. c) Tend to force physiological variables back to set point, opposite direction of deviation d) Ten to force physiological variables away from their set point, further deviating itarrow_forwardStem cells, being stem cells, are by definition thesame in all tissues.Explain why or why not.arrow_forward
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