Principles of Anatomy and Physiology
16th Edition
ISBN: 9781119662792
Author: Tortora, Gerard J., DERRICKSON, Bryan H.
Publisher: WILEY
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Chapter 1, Problem 9CP
Summary Introduction
To review:
The types of disturbances that can act as stimuli that initiate a feedback system.
Introduction:
A feedback system is formed by communication of group of receptors and effectors with their respective control center, which in turn, regulate a controlled condition in the body's internal environment.
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Chapter 1 Solutions
Principles of Anatomy and Physiology
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Similar questions
- Define homeostasis. What happens when homeostasis fails? List the three basic components of a control system and give an example. Describe the components of a reflex pathway. Contrast the response loop and the feedback loop. Explain the relationship between a regulated physiological variable and its setpoint. Is the physiological variable exactly at its setpoint? Compare and contrast negative and positive feedback. Give a biological example of each. Is the setpoint constant or can it change over time? If setpoints can change over time, what is this called? Chapter 2:arrow_forwardIn 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 stimuarrow_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_forward
- In a negative feedback loop, the effector moves the system in the direction as the stimulus.arrow_forwardDescribe how blood sugar (e.g. glucose plasma concentration) is regulated with the hormones, insulin, and glucagon. For this feedback loop, identify the following components of the feedback loop: stimulus, receptor, control center, efferent pathway, effector, and response. Be comfortable with this feedback loop to be able to describe the effects of changing various components of the feedback loop.arrow_forwardDescribe forces that act as stimulants to change.arrow_forward
- Explain the difference between positive feedback and negative feedback loops with examplesarrow_forwardGive an example of a feedback mechanism in the human body. Explain your example briefly. Make sure to identify the type of feedback (negative or positive), the receptor, the control center and the effector.arrow_forwardWhich neurotransmitter affects the neurons involved in movement, learning, memory, and emotion, and how it impacts our life in a negative or positive way ?arrow_forward
- If the nervous system finds a particular pathway is inaccessible, it will: Continue to use that pathway to send messages to and from other parts of the body. Try to find or create a new pathway to send the signal to or from other parts of the body. Use the muscles to send a signal without the use of the nervous system. None of the above.arrow_forwardWhich 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_forwardDraw a row diagram showing the relationships among the components of a negative-feedback control system.arrow_forward
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