Anatomy & Physiology: The Unity of Form and Function (Standalone Book)
7th Edition
ISBN: 9780073403717
Author: Kenneth S. Saladin Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 7TYR
A self-amplifying chain of physiological events is called
- a. positive feedback.
- b. negative feedback.
- c. dynamic constancy.
- d. homeostasis.
- e.
metabolism .
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Which of these statements about homeostasis is true? a.The internal environment is maintained absolutely constant. b.Negative feedback mechanisms act to correct deviations from a normal range within the internal environment. c.Homeostasis is maintained by turning effectors on and off. d.All of these are true.
In a negative feedback mechanism,a. the output cancels the input.b. there is a fluctuation above and below the average.c. there is self-regulation.d. a regulatory center communicates with other body parts.e. All of these are correct.
Which of the following is the correct definition of positive feedback?
a
The process by which the body neglects homeostasis.
b
A mechanism in which the body's response to a stimulis opposes the stimulus.
c
A mechanism whereby the body responds to a stimulus by acting to enhance the stimulus
d
The dynamic equilibrium maintained by an integrating center which causes an effector to respond to the stimulus received by the receptor.
Chapter 1 Solutions
Anatomy & Physiology: The Unity of Form and Function (Standalone Book)
Ch. 1.1 - Prob. 1BYGOCh. 1.1 - Prob. 2BYGOCh. 1.1 - Prob. 1AYLOCh. 1.1 - Prob. 2AYLOCh. 1.1 - Prob. 3AYLOCh. 1.1 - Prob. 4AYLOCh. 1.2 - Prob. 3BYGOCh. 1.2 - Prob. 4BYGOCh. 1.2 - Prob. 5BYGOCh. 1.2 - Prob. 1AYLO
Ch. 1.2 - Prob. 2AYLOCh. 1.2 - Prob. 3AYLOCh. 1.2 - Prob. 4AYLOCh. 1.3 - Prob. 6BYGOCh. 1.3 - Prob. 7BYGOCh. 1.3 - Prob. 8BYGOCh. 1.3 - Prob. 1AYLOCh. 1.3 - Prob. 2AYLOCh. 1.3 - Prob. 3AYLOCh. 1.3 - Prob. 4AYLOCh. 1.3 - Prob. 5AYLOCh. 1.3 - Prob. 6AYLOCh. 1.4 - Prob. 9BYGOCh. 1.4 - Prob. 10BYGOCh. 1.4 - Prob. 11BYGOCh. 1.4 - Prob. 1AYLOCh. 1.4 - Prob. 2AYLOCh. 1.4 - Prob. 3AYLOCh. 1.4 - Prob. 4AYLOCh. 1.4 - Prob. 5AYLOCh. 1.5 - Prob. 12BYGOCh. 1.5 - Prob. 13BYGOCh. 1.5 - Prob. 14BYGOCh. 1.5 - Prob. 15BYGOCh. 1.5 - Prob. 1AYLOCh. 1.5 - Prob. 2AYLOCh. 1.5 - Prob. 3AYLOCh. 1.6 - Prob. 16BYGOCh. 1.6 - Prob. 17BYGOCh. 1.6 - Prob. 18BYGOCh. 1.6 - Prob. 19BYGOCh. 1.6 - Prob. 20BYGOCh. 1.6 - Prob. 1AYLOCh. 1.6 - Prob. 2AYLOCh. 1.6 - Prob. 3AYLOCh. 1.6 - Prob. 4AYLOCh. 1.6 - Prob. 5AYLOCh. 1.6 - Prob. 6AYLOCh. 1.6 - Prob. 7AYLOCh. 1.6 - Prob. 8AYLOCh. 1.7 - Prob. 21BYGOCh. 1.7 - Prob. 22BYGOCh. 1.7 - Prob. 23BYGOCh. 1.7 - Prob. 24BYGOCh. 1.7 - Prob. 1AYLOCh. 1.7 - Prob. 2AYLOCh. 1.7 - Prob. 3AYLOCh. 1.7 - Prob. 4AYLOCh. 1.7 - Prob. 5AYLOCh. 1.8 - Prob. 1AYLOCh. 1 - Prob. 1TYRCh. 1 - Prob. 2TYRCh. 1 - The simplest structures considered to be alive are...Ch. 1 - Which of the following people revolutionized the...Ch. 1 - Which of the following embodies the greatest...Ch. 1 - Prob. 6TYRCh. 1 - A self-amplifying chain of physiological events is...Ch. 1 - Which of the following is not a human organ...Ch. 1 - ______ means studying anatomy by touch. a. Gross...Ch. 1 - The prefix hetero- means a. same. b. different. c....Ch. 1 - Cutting and separating tissues to reveal...Ch. 1 - A difference in chemical concentration between one...Ch. 1 - Prob. 13TYRCh. 1 - Physiological effects of a persons mental state...Ch. 1 - The tendency of the body to maintain stable...Ch. 1 - Blood pH averages 7.4 but fluctuates from 7.35 to...Ch. 1 - Prob. 17TYRCh. 1 - Prob. 18TYRCh. 1 - Prob. 19TYRCh. 1 - Prob. 20TYRCh. 1 - Prob. 1BYMVCh. 1 - Prob. 2BYMVCh. 1 - Prob. 3BYMVCh. 1 - metabolo-Ch. 1 - Prob. 5BYMVCh. 1 - physio-Ch. 1 - Prob. 7BYMVCh. 1 - Prob. 8BYMVCh. 1 - Prob. 9BYMVCh. 1 - tomo-Ch. 1 - Prob. 1TFCh. 1 - Prob. 2TFCh. 1 - Prob. 3TFCh. 1 - Prob. 4TFCh. 1 - Prob. 5TFCh. 1 - Prob. 6TFCh. 1 - Prob. 7TFCh. 1 - Prob. 8TFCh. 1 - Prob. 9TFCh. 1 - Prob. 10TFCh. 1 - Ellen is pregnant and tells Janet, one of her...Ch. 1 - Which of the characteristics of living things are...Ch. 1 - About 1 out of every 120 live-born infants has a...Ch. 1 - How might human anatomy be different today if the...Ch. 1 - Prob. 5TYC
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is incorrect?a. Equilibrium requires a constant input of energy.b. Positive feedback is less common in nature than negative feedback.c. Homeostasis does not imply that a given variable is unchanging.d. Fever is an example of resetting a set point.e. Efferent pathways carry information away from the integrating center of a reflex arc.arrow_forwardWhich of the following is true of positive feedback? a. The change is opposite that of negative feedback b. The effector turns off the response c. The change is amplified What is the difference between the answers a & b?arrow_forwardIn a negative feedback loop, the effector produces changes that are a. in the same direction as the change produced by the initial stimulus. b. opposite in direction to the change produced by the initial stimulus. c. unrelated to the initial stimulus.arrow_forward
- Which of the following physiological event is not maintained by homeostasis? Select one: a. Temperature of the body. b. Blood pressure. c. Concentration of oxygen in the body. d. Concentration of nutrients in the body.arrow_forwardYou have to identify the following:1. The negative feedback condition/mechanism2. The four components of a negative feedbackloop:A. stimulusB. sensorC. control centerD. effector3. Explain what would happen to eachcomponent if a secretion became too great.arrow_forwardWhich of the following is not true for f negative feedback loops? A. In a negative loop, the response to the signal or stimulus decreases the original signal or stimulus. B. Negative feedback loops maintain homeostasis. C. Negative feedback loops are temporary. D. There are many more instances of negative feedback loops in the human body than positive feedback loops.arrow_forward
- What is the difference between positive and negative feedback? (Use the article attached)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_forwardSelect the statements that correctly describe positive feedback pathways. 1. A sensor/receptor is required to monitor and limit levels. 2. A sensor/receptor is unnecessary to monitor and limit levels. 3. Feedback prevents homeostasis. 4. Feedback contributes to homeostasis. 5. Feedback stimulates the effector to continue to do the same thing. 6. Feedback stops the effector from doing one thing and stimulates it to do the opposite. 7. When the target level for a hormone is reached, feedback results in a reduction of that hormone being released. 8. When a target level for a hormone is reached, feedback results in an increase of that hormone being released. Record your answers in ascending (lowest to highest) order.arrow_forward
- Give an example of a feedback mechanism in the human body. Explain your example briefly. Make sure to identify the type of feedback (negative or positive), the receptor, the control center and the effector.arrow_forwardWhich of the following statements correctly describes the all-or-none principle? a. A neuron produces a complete response or no response to a stimulus. b. A stimulus depolarizes all of the neurons in the body or none at all. c. A neuron produces a complete response to every stimulus. d. A stimulus repolarizes all of the neurons in the body or none at all.arrow_forwardUsing your knowledge of the heart, blood vessels and factors affecting blood pressure, create a possible reflex control/feedback loop that would occur if a person's blood pressure suddenly decreases. Include all of the elements of a feedback loop. Your answer can simply be a list of steps that would occur, but make sure to indicate all of the elements of a feedback loop. This does not to be extremely detailed, I am looking for the elements of the feedback loop and to see that you understand the factors affecting blood pressure. I will start the loop: 1. Stimulus: Drop in blood pressure.arrow_forward
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What is Homeostasis? | Physiology | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=quQr6X1Q58I;License: CC-BY