Concept explainers
To review:
The function of the control center in a negative feedback control system.
Introduction:
Homeostasis is the process that occurs in the body to maintain a constant, stable internal condition even when the external environment changes continuously. The homeostasis in the body is constantly being regulated by various positive and negative feedback mechanisms. Generally, the negative feedback mechanisms control the homeostatic mechanisms. In these systems, the net effect of the response is either reduced or shut off.
The automatic detection of any deviation of system activity from its normal state and the counteraction on the variables of the system activity to return back to its normal state occurs. The negative feedback loop involves three different components, namely, the receptors, control center, and effectors.
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Human Biology : Concepts and Current Issues - With Access
- Draw a row diagram showing the relationships among the components of a negative-feedback control system.arrow_forwardChoose a negative feedback loop and state the 5 components. Explain how positive feedback is different from negative feedback and give an example of positive feedback.arrow_forwardCompare/contrast positive and negative feedback.arrow_forward
- Explain the role of antagonistic effectors in maintaining homeostasis, and the nature of positive feedback loops.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_forwardDefine the term negative feedback loop and positive feedback loop and explain how they differ from each other.arrow_forward
- Explain the difference between positive feedback and negative feedback loops with examplesarrow_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_forwardGive an example of a positive feedback system?arrow_forward
- describe two examples of where positive and negative feedback systems are used in the bodyarrow_forwardcompare and contrast positive feedback and negative feedback using the cenn diagram.arrow_forwardWhat is a negative feedback? What is a positive feedback? Give an example of each kind of feedback.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning