Homeostasis can be defined as the tendency of the human body to maintain a relatively constant Blank 1 Question 1 environment. The body maintains this environment using Blank 2 Question 1 which detect a change in the internal environment, Blank 3 Question 1 which bring the conditions back into a normal range, and the control centre which coordinates these processes. The human body should stay at a body temperature of near Blank 4 Question 1 and a pH value of Blank 5 Question 1 to maintain homeostasis. A variety of Blank 6 Question 1 feedback systems work in the body to maintain these conditions for life. Question 2 Not yet answered Marked out of 1.00 Flag question Question text
Added by Megan H.
Step 1
- Homeostasis: The tendency of the human body to maintain a relatively constant internal environment. - Control mechanisms: The processes used by the body to maintain homeostasis. - Feedback systems: Mechanisms that detect changes and bring conditions back to Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 57 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
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.
Case studies: Homeostasis Susan, a 23-year-old student, went on a trip to a health spa with friends. Susan sat in a sauna at a temperature of 170°F (77°C) for ten minutes. During this time, homeostatic mechanisms led to her body temperature remaining relatively constant. 1. What is homeostasis? 2. What factors or conditions of the internal body environment are monitored and regulated as part of homeostasis? 3. What is meant by the terms 'set point' and 'set point range'? 4. What is the set point temperature for the body? 5. Describe the basic components that form a homeostatic feedback system. 6. What type of feedback system would be involved in regulating Susan's temperature? 7. What are the effectors that help to reduce Susan's body temperature? What is their response to increased body temperature?
Madhur L.
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.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD