HUMAN PHYSIOLOGY CONNECT ACCESS CARD
15th Edition
ISBN: 9781260865462
Author: Fox
Publisher: MCG CUSTOM
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Question
Chapter 1, Problem 26RA
Summary Introduction
To analyze:
The sensitivity of the negative feedback loop.
Introduction:
Negative feedback loops bring the system back to the initial values. The thermoreceptors sense the change in body temperature. The sensitivity of a negative feedback loop is the deviation at which the thermoreceptors sense change.
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Chapter 1 Solutions
HUMAN PHYSIOLOGY CONNECT ACCESS CARD
Ch. 1 - How has the study of physiology aided, and been...Ch. 1 - Describe the steps involved in the scientific...Ch. 1 - Describe the different types of trials a new drug...Ch. 1 - Define homeostasis and describe how this concept...Ch. 1 - Define negative feedback and explain how it....Ch. 1 - Prob. 4CPCh. 1 - Explain how the secretion of a hormone is...Ch. 1 - List the four primary tissues and describe the...Ch. 1 - Compare and contrast the three types of muscle...Ch. 1 - Describe the different types of epithelial...
Ch. 1 - Prob. 7aCPCh. 1 - Describe the different types of connective tissues...Ch. 1 - State the location of each type of primary tissue...Ch. 1 - Describe the functions of nervous, muscle, and...Ch. 1 - Describe the functions of the epidermis and...Ch. 1 - Prob. 9CPCh. 1 - Glands are derived from...Ch. 1 - Cells joined tightly together are characteristic...Ch. 1 - Cells are separated by large extracellular spaces...Ch. 1 - Blood vessels and nerves are usually located...Ch. 1 - Most organs are composed of...Ch. 1 - Sweat is secreted by exocrine glands. This means...Ch. 1 - Which of these statements about homeostasis is...Ch. 1 - In a negative feedback loop, the effector produces...Ch. 1 - A hormone called parathyroid hormone acts to help...Ch. 1 - Which of these consists of dense parallel...Ch. 1 - Prob. 11RACh. 1 - Prob. 12RACh. 1 - Describe the structure of the various epithelial...Ch. 1 - Compare bone, blood, and the dermis of the skin in...Ch. 1 - Describe the role of antagonistic negative...Ch. 1 - Using insulin as an example, explain how the...Ch. 1 - Describe the steps in the development of...Ch. 1 - Why is Claude Bernard considered the father of...Ch. 1 - Prob. 19RACh. 1 - Prob. 20RACh. 1 - Why are interactions between the body-fluid...Ch. 1 - Prob. 22RACh. 1 - Give examples of adult stem cells and explain...Ch. 1 - Prob. 24RACh. 1 - Prob. 25RACh. 1 - Prob. 26RA
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- Suppose you have been doing heavy yardwork on a hot day and sweating profusely.You become very thirsty, so you drink a tallglass of lemonade. Explain how your thirstrelates to the concept of homeostasis. Whichtype of feedback—positive or negative—does this illustrate?arrow_forwardMatch the body temperature control item to the appropriate location in the negative feedback loop. Effector when variable is low Effector when variable is high Control center Sensor Controlled variable A. Muscles for shivering and goosebumps B. Nerves in skin C. Brain D. Sweat glands E. Temperaturearrow_forwardWhat effect would swimming in cool water have on body temperatureregulation? What would happen if a negative-feedback mechanismdid not return the value of a variable, such as body temperature, to itsnormal range?arrow_forward
- Positive feedback loops are the opposite of negative feedback loops. In a positive feedback loop, any change in the original variable triggers mechanisms that actually push the variable further in the direction of the change. Imagine that body temperature was regulated in this way. Briefly explain what would happen.arrow_forwardPositive 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.arrow_forwardDescribe a general physiological control system, includingthe role of negative feedback.arrow_forward
- Negative feedback systems keep regulated variables within a normal range by ______________ any upward or downward shift in that variable, i.e. it means an _______________ response to a stimulus.arrow_forwardIdentify the four components of a negative feedbackloop and explain what would happen if secretion of a bodychemical controlled by a negative feedback system becametoo great.arrow_forwardDefine the term negative feedback loop and positive feedback loop and explain how they differ from each other.arrow_forward
- The 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_forwardWhat specific evidences can be used to support the statement that “The importance of the effect of temperature on physiological function is revealed by adaptations to maintain function at different temperatures”.arrow_forwardWhich of the following is a way that the body determines how much of a certain chemical, protein, enzyme, or response is needed to maintain homeostasis? A. Resource limitation, B. Feedback inhibition, C. Kickback inhibition, D. Signal looparrow_forward
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