Questions and Answers
What is the adjustment of body systems to maintain a stable internal environment vital for survival called?
homeostasis
In the example of keeping a room at a comfortable temperature in the summer, what is the effector that responds to cool the room?
air conditioner
Which of the following conditions can be caused by severe vomiting?
What is a good example of a positive feedback mechanism?
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Which of the following statements about homeostasis is true?
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What is the condition in which the body maintains a relatively stable internal environment called?
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What is the correct order of the three main components of homeostasis?
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What is the method of homeostatic regulation that occurs when an effector opposes the original stimulus called?
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Study Notes
Homeostasis Overview
- Homeostasis refers to the body's ability to maintain a stable internal environment crucial for survival.
- A stable internal environment is achieved within acceptable limits, ensuring proper physiological functions.
Feedback Mechanisms
- Positive feedback mechanisms amplify changes to a system, such as progressively stronger labor contractions during childbirth.
- Negative feedback mechanisms oppose changes from a stimulus, helping to stabilize the internal environment.
Components of Homeostasis
- The three main components involved in homeostatic regulation are:
- Receptor: Detects changes in the environment.
- Control Center: Processes the information and determines the response.
- Effector: Executes the response to restore balance.
Conditions Affecting Homeostasis
- Severe vomiting can lead to metabolic alkalosis, a condition characterized by elevated blood pH due to loss of acid.
- Only variables with receptors can be regulated, emphasizing the importance of sensor systems in maintaining homeostasis.
Homeostasis Examples
- The air conditioner serves as an effector in maintaining a comfortable room temperature during summer, responding to temperature changes.
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Description
Test your knowledge on homeostasis with these flashcards. Explore key concepts such as body system adjustments, examples of effectors, and conditions caused by severe vomiting. Perfect for students studying biology and physiology.
