Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 1, Problem 3bCP
Define negative feedback and explain how it. contributes to homeostasis. Illustrate this concept by drawing and labeling a negative feedback loop.
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Chapter 1 Solutions
Human Physiology
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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- In______, physical and chemical aspects of the body are being kept within tolerable ranges by body are being kept within tolerable ranges by controlling mechanisms. a. Positive feedback b. Negative feedback c. Homeostasis d. metastasisarrow_forwardDefine: homeostasis What is a negative feedback loop? What is a positive feedback loop? Which of those two is rare?arrow_forwardExplain the components of a feedback loop and discuss what would happen if secretion of a body chemical controlled by a negative feedback system became too great.arrow_forward
- Describe a negative-feedback mechanism and give an example.arrow_forwardExplain the following statement. “All systems of the body contribute to homeostasis.” Use an ANALOGY of DAILY LIFE and give an example of a negative feedback loop.arrow_forwardDefine anatomy and explain the importance of understanding the relationship between structure and function. Define physiology and state two major goals of physiology. Describe six levels of organization of the body, and give the major characteristics of each level. List 11 organ systems and give the major functions of each. List six characteristics of life. Define homeostasis and explain why it is important. Diagram a negative-feedback mechanism and a positive-feedback mechanism, and describe their relationships to homeostasis. Describe a person in the anatomic position. Define the directional terms for the human body, and use them to locate specific body structure. Define the parts and regions of the body. Name and describe the three major planes of the body and an organ. Describe the major trunk cavities. Describe the serous membrane, and give their functions.arrow_forward
- 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.arrow_forwardDescribe a general physiological control system, includingthe role of negative feedback.arrow_forwardContrast negative and positive feedback, giving one physiologic example of each mechanismarrow_forward
- ACTIVITY 2 Direction: Draw a Venn Diagram using this table. NEGATIVE FEEDBACK MECHANISM Most control mechanisms in the human body are negative POSITIVE FEEDBACK MECHANISM A positive feedback mechanism ENHANCES the original stimulus to ACCELERATE activity Integrator triggers a move in the SAME DIRECTION triggering an “explosive" response Positive feedback mechanisms are less common Ex. Blood clotting, childbirth (oxytocin) feedback mechanisms A negative feedback mechanism DECREASES the intensity of the stimulus and eliminates it When a variable is above or below set point, integrator triggers a move in the OPPOSITE DIRECTION to reach the set value Ex. Body temperature, blood pressure, pH and CO2 levels, blood glucose levelsarrow_forwardDescribe how negative feedback and positive feedback are involved in homeostatic regulation.arrow_forwardDirection: Complete the Venn Diagram. In the outer circles, write the difference between negative and positive feedback and the similarities where the circles overlap. Use the sentences below. Negative Feedback Positive Feedback • a control system that sends a signal to increase a response. • a control system that helps the body maintain homeostasis by sending a signal to stop a response. • Less common but, occur in specific situations • Occur more often in the body, helping in maintaining various conditions of the body • Benefits the body • Helps to sustain homeostasis • A feedback mechanism resulting in the growth of the output signal • A feedback mechanism resulting in the slowing down of a process • Blood clotting • Blood pressure Similaritiesarrow_forward
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