Anatomy & Physiology: An Integrative Approach
2nd Edition
ISBN: 9780078024283
Author: Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
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Chapter 1, Problem 10DYKB
Summary Introduction
Introduction:
The control system of homeostasis is separated into two categories based on whether the system amplifies the stimulus in the same direction or it maintains the variable in normal range in the opposite direction. The two types of feedback control include positive feedback and negative feedback respectively.
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In a negative feedback loop, the effector produces changes that are a. in the same direction as the change produced by the initial stimulus. b. opposite in direction to the change produced by the initial stimulus. c. unrelated to the initial stimulus.
In describing a positive feedback loop, which of the following would be true?
a) the sensor and control center are always the same
b) the effector signals the control center to shut off the initial stimulus
c) the effect shuts off the initial stimulus
d) the effect amplifies the initial stimu
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.
Chapter 1 Solutions
Anatomy & Physiology: An Integrative Approach
Ch. 1.1 - What subdiscipline of anatomy may explore how the...Ch. 1.1 - What is the relationship between anatomy and...Ch. 1.1 - __________ physiology examines how the heart,...Ch. 1.2 - Compare and contrast how anatomists and...Ch. 1.3 - Prob. 5WDYLCh. 1.3 - Prob. 6WDYLCh. 1.3 - Prob. 7WDYLCh. 1.4 - What type of plane would separate the nose and...Ch. 1.4 - Which directional term would be most appropriate...Ch. 1.4 - The term antebrachial refers to which body region?
Ch. 1.4 - Which body cavity is associated with the lungs,...Ch. 1.4 - If a physician makes an incision into the abdomen...Ch. 1.5 - List and describe the three components of a...Ch. 1.5 - Prob. 14WDYLCh. 1.5 - What is the main difference between a homeostatic...Ch. 1.6 - What is an example of a disease process by which...Ch. 1 - Examining the superficial anatomic markings and...Ch. 1 - The __________ level of organization is composed...Ch. 1 - The term __________ refers to the sum of all...Ch. 1 - A midsagittal plane separates the body into a....Ch. 1 - The term used to describe an appendage structure...Ch. 1 - The __________ region is the anterior part of the...Ch. 1 - Which body cavity is located inferior to the...Ch. 1 - The __________ is the serous membrane layer that...Ch. 1 - The state of maintaining a constant internal...Ch. 1 - Prob. 10DYKBCh. 1 - What are the similarities and differences between...Ch. 1 - List the levels of organization in a human,...Ch. 1 - Prob. 13DYKBCh. 1 - Name the organ systems in the human body.Ch. 1 - Describe the body in the anatomic position. Why is...Ch. 1 - List the anatomic term that describes each of the...Ch. 1 - What are the two body cavities within the...Ch. 1 - Describe the structure and function of serous...Ch. 1 - What are the main components in a homeostatic...Ch. 1 - Prob. 20DYKBCh. 1 - Your friend Eric complains of some pain in his...Ch. 1 - Your friend Eric complains of some pain in his...Ch. 1 - Your friend Eric complains of some pain in his...Ch. 1 - When you are outside on a hot, humid day, what...Ch. 1 - A friend just started taking Zoloft (an SSRI) and...Ch. 1 - Lynn was knocked off her bicycle during a race....Ch. 1 - Prob. 2CSLCh. 1 - Prob. 3CSL
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- Which of the following terms does The information flow from the outside to the inside and then to the effectors belong to? a.)Control center b.)Homeostasis c.)Stimulus-response model d.)Negative feedback e.)Positive feedback f.)Feedback modelarrow_forwardWhich of the following is the correct definition of positive feedback? a The process by which the body neglects homeostasis. b A mechanism in which the body's response to a stimulis opposes the stimulus. c A mechanism whereby the body responds to a stimulus by acting to enhance the stimulus d The dynamic equilibrium maintained by an integrating center which causes an effector to respond to the stimulus received by the receptor.arrow_forwardWhich of the following terms does The state of internal equilibrium despite external changing conditions belong to? a.)Control center b.)Homeostasis c.)Stimulus-response model d.)Negative feedback e.)Positive feedback f.)Feedback modelarrow_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_forwardIn negative feedback, the variable being regulated is changed in the ______ direction, while in positive feedback the variable is changed in the ______ direction. A. same, opposite B. negative, positive C. opposite, same D. decreasing, increasingarrow_forwardDraw a diagram that shows how the parts of a negative feedback loop interact. Include set-point, stimulus, sensor, control center, effector, and response in your drawing.arrow_forward
- 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?arrow_forwardA) Divergent Process B) Positive Feedback Process C) Negative Feedback Process D) Neutral Processarrow_forwardWhy is feedback important in the body? Give an example on how our body uses the pairing of stimulus and response.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_forwardNegative 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_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_forward
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