14 Fill in the blanks with the terms provided. Not all terms will be used. Homeostasis is a term that describes the many (Click to select) processes to maintain the (Click to select) of the body. These characteristics are noted about homeostatic systems: 1. They are (Click to select) and continually change. 2. The control center is generally the nervous system or (Click to select) system. 3. There are three components: receptor, control center, and (Click to select) 4. They are typically regulated through (Click to select) feedback to maintain a normal value. 5. It is when these systems fail that a homeostatic imbalance or (Click to select) occurs, threatening an individual's survival.
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Complete the following statements to demonstrate your understanding of homeostasis. Not all choices will be used. balance fluctuate illness metabolism peak wide constant narrow The body maintains a relatively ____________ internal environment by adjusting its physiological processes. This control of the internal environment is called homeostasis, and can be observed through the ____________ range of the body's pH, temperature, and blood glucose. Though all of these ____________ somewhat, they do not go beyond a certain range. If they do, ____________ results.
Sri K.
One organ system usually has no effect on other systems; Fill in the Gaps: Homeostasis To maintain a stable environment, the body constantly monitors conditions and makes adjustments. This process is called homeostatic regulation. Review this crucial process by filling in the blanks to complete each sentence. Choose from the words listed in the Word Bank below: (Hint: Not all the words will be used) AMPLIFIES EQUILIBRIUM NEGATIVE OPPOSES POSITIVE RECEPTOR REINFORCES REVERSES SUPPRESSES CONTROL CENTER EFFECTOR 1. Homeostasis is the state of dynamic equilibrium of the internal environment of the body. 2. To maintain homeostasis, a system must have three components: (1) a receptor that detects external changes which could influence the environment; (2) a control center that receives and processes the information from the receptor and responds to signals from the first component; and (3) an effector that opposes or enhances the stimulus from the second component by either opposing or enhancing the stimulus. Negative feedback is when the effector reverses the direction of change, and positive feedback is when the effector reinforces the direction of change. Most systems supporting homeostasis operate by feedback.
Adi S.
Homeostasis means maintaining a stable, approximately constant internal environment within an organism, even when the external environment is constantly changing (temperature, chemicals, etc.). Organisms must have a control system to detect changes and respond to them. Anything that must be maintained within a normal range in the body (the set point) must have a control system. For example, body temperature, blood pressure, and blood glucose levels are all regulated. A homeostatic control mechanism consists of three parts. Fill in the blank with the appropriate word for the analogy below: The variable or stimulus is the factor that is regulated (ex: room temperature, body temperature). The variable is like a teeter-totter: If it is perfectly balanced in the horizontal position, it is at the normal value called the set point (ex: 68°F / 98.6°F). The sensor (ex: thermometer, nerves in the skin) senses changes in the variable (temperature) and sends information to the integrator (ex: brain). The integrator analyzes the information, determines the appropriate response, and then activates the effector (ex: muscles or glands), which provides an action or response that will influence the variable. When the response causes the variable to return to its set point, it is referred to as negative feedback. When the response enhances the stimulus, it is referred to as positive feedback. Feedback mechanisms are much more common in the body.
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