Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Question
Chapter 1.5, Problem 2AWYL
Summary Introduction
To review:
The regulation of increased body temperature by the positive feedback mechanism.
Introduction:
The stable condition of the internal system of the body is termed as homeostasis. Homeostasis is either maintained by the negative or positive feedback mechanism. These mechanisms respond to the stimuli by either inhibiting them or accelerating them in order to maintain a relatively stable condition of the body.
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Positive feedback loops are the opposite of negative feedback loops. In a positive feedback loop, any change in the original variable triggers mechanisms that actually push the variable further in the direction of the change. Imagine that body temperature was regulated in this way. Briefly explain what would happen.
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The role of insulin is to signal the cells to uptake glucose from the blood. Is this a positive or negative feedback loop? Explain what would happen if the other type of feedback loop were to occur.
Chapter 1 Solutions
Human Anatomy & Physiology
Ch. 1.1 - What are learning styles? Which learning style(S)...Ch. 1.1 - 2. How should you approach reading a textbook,...Ch. 1.1 - What are some study strategies to improve your...Ch. 1.1 - Prob. 4QCCh. 1.1 - 5. What are some strategies for taking good notes...Ch. 1.1 - 6. How can you use the features found in each...Ch. 1.1 - 7. How should you approach the study of figures...Ch. 1.1 - Design a study schedule for yourself up to the...Ch. 1.1 - 2. Determine several study strategies that will...Ch. 1.2 - List the properties common to all living...
Ch. 1.2 - Prob. 2QCCh. 1.2 - Prob. 3QCCh. 1.2 - 4. How do gross anatomy and microscopic anatomy...Ch. 1.2 - How are physiological specializations classified?Ch. 1.2 - The condition hypothyroidism is characterized by a...Ch. 1.2 - 2. At first glance, a human and a rose plant seem...Ch. 1.3 - Define anatomical position.
Ch. 1.3 - Fill in the blanks: The nose is to the mouth....Ch. 1.3 - Fill in the blanks: a. The wrist is also known as...Ch. 1.3 - Explain how the three main planes of section...Ch. 1.3 - Locate a mole, scar, tattoo, or other mark on your...Ch. 1.3 - You need to examine the internal anatomy of both...Ch. 1.4 - What are the two subcavities of the dorsal body...Ch. 1.4 - 2. List the subdivisions of the thoracic and...Ch. 1.4 - 3. What are serous membranes, and what are their...Ch. 1.4 - Explain how serous membranes form certain ventral...Ch. 1.4 - Prob. 1AWYLCh. 1.4 - Prob. 2AWYLCh. 1.4 - Inflammation of serous membranes may cause the...Ch. 1.5 - 1. What is homeostasis, and why is it important?
Ch. 1.5 - 2. What is a homeostatic imbalance?
Ch. 1.5 - How do negative feedback loops maintain...Ch. 1.5 - Prob. 4QCCh. 1.5 - Prob. 5QCCh. 1.5 - 6. Define gradient, and give examples of different...Ch. 1.5 - 7. Why is cell-cell communication important?
Ch. 1.5 - 8. What are the two major methods by which cells...Ch. 1.5 - The cells of cancerous tumors undergo changes that...Ch. 1.5 - Prob. 2AWYLCh. 1.5 - 3. You plug in an electric air freshener and...Ch. 1 - Fill in the blanks: The study of the form of the...Ch. 1 - 2. Mark the following statements as true or false....Ch. 1 - Prob. 3CYRCh. 1 - 4. Which of the following resources does the book...Ch. 1 - Prob. 5CYRCh. 1 - 5. Which of the following correctly describes the...Ch. 1 - Mark the following statements as true or false. If...Ch. 1 - Match the following terms with the correct...Ch. 1 - 8. The upper and lower limbs are known broadly as...Ch. 1 - The arm is known as the ___________ region; the...Ch. 1 - A parasagittal section divides the body or body...Ch. 1 - 11. Fill in the blanks: The two divisions of the...Ch. 1 - 12. Fill in the blanks: The two main divisions of...Ch. 1 - 13. In which of the following cavities do serous...Ch. 1 - 14. Serous fluid functions in:
a. Providing...Ch. 1 - 15. Which organs would you expect to find in the...Ch. 1 - 16. Mark the following statements as true or...Ch. 1 - Prob. 18CYRCh. 1 - Examine the structure of the skull, and predict...Ch. 1 - Prob. 2CYUCh. 1 - Prob. 1AYKCh. 1 - 2. During a procedure on Ms. Norman’s pancreas, a...Ch. 1 - Later that same day, the surgeon performs a...Ch. 1 - The baroreceptor reflex causes blood pressure to...
Knowledge Booster
Similar questions
- Explain 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_forwardA fever is an increase in body temperature above normal range. A fever causes metabolic changes that push the person's body temperature even higher. If body temperature rises above 45oc death occur because cellular proteins change shape and metabolism stops. Is a fever of positive or negative feedback system? Explainarrow_forwardWhat effect would swimming in cool water have on body temperatureregulation? What would happen if a negative-feedback mechanismdid not return the value of a variable, such as body temperature, to itsnormal range?arrow_forward
- In the negative feedback system for regulation of body temperature. Identify the following. 1. Stimulus 2. Receptor 3. Control Center 4. Effector 5. Responsearrow_forwardA fever is an increase in body temperature above the normal range. A fever causes metabolic changes that push the person’s body temperature still higher. If body temperature rises above 45°C death occurs because cellular proteins change shape and metabolism stops. Is a fever an example of a positive or negative feedback system? Explain your answer.arrow_forwardThe feedback loop shown below is an example of negative feedback that uses the narrowing and widening of blood vessels in the skin to regulate body temperature. DIRECTIONS: Label the diagram using the words or phrases from the word bank. Then answer the questions that follow. body temperature falls body temperature rises normal body temperature vasoconstriction vasodilation Feedback: Feedback: Response: ACY MENT CHA RICH OF EATIO Response: EX Stimulus: Increase in Body Temperature Stimulus: Decrease in Body Temperaturearrow_forward
- Maintaining homeostasis is controlled through negative feedback loops. Discuss why having a positive feedback system for maintaining homeostasis would be problematic for organisms (2-3 sentences).arrow_forwardIf daytime body temperature of some ectotherms were measured, the values would be fairly constant. Provide an explanation for such observations, giving some possible mechanisms that might be involvedarrow_forwardDistinguish between positive and negative feedback loops. Which mechanisms is generally good for human beings and why?arrow_forward
- The diagram shows an internal feedback mechanism that helps the body maintain homeostasis. Homeostasis in the Body Researchers tested blood sugar levels of 100 volunteers exactly two hours after eating a specific meal. Based on their ages, the volunteers were expected to have a healthy blood sugar level of less than 140 mg/dL. Approximately 10% of the volunteers had blood sugar levels higher than 140 mg/dL. Using the diagram, infer one possible cause for these high blood sugar levels. Raises blood sugar High blood sugar Glycogen Liver Stimulates glycogen breakdown Glucose Glucagon Lowers blood sugar Stimulates glycogen formation Insulin 0000 Tissue cells Stimulates glucose uptake from blood Low blood sugar Promotes insulin release Pancreas Promotes glucagon release The liver was not responsive to the glucagon that was produced. The body did not produce enough insulin to have the expected effect. The pancreas stopped glucagon production. The pancreas produced too much insulin.arrow_forwardwhich of the following scenarios can be classified as a negative feedback loop? a. increase in oxytocin caused by increased contractions b. increase in blood pressure to reduce heart rate c. increase in testosterone to help increase a fight or flight response d. increase in platelet production to help increase blood clottingarrow_forwardWhich of the following is a way that the body determines how much of a certain chemical, protein, enzyme, or response is needed to maintain homeostasis? A. Resource limitation, B. Feedback inhibition, C. Kickback inhibition, D. Signal looparrow_forward
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