Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Question
Chapter 1.5, Problem 4CC
Summary Introduction
To determine: Whether the heating system of aquarium operates by means of positive or negative feedback
Introduction: The positive and the negative feedbacks are the types of responses that operate during a
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In negative feedback systems
the receptor sends a negative signal
the stimulus is increased or amplified
the effector reduces or eliminates the stimulus
the control center receives input from the effector
the receptor increases or enhances the stimulus
In a negative feedback loop, the effector moves the system in the direction as the stimulus.
You are removing a hot pan of cookies from the oven, using a pot holder. Suddenly, you feel a surge of heat through the pot holder. Why don’t you react by dropping the baking pan and spilling cookies all over the floor?
You are removing a hot pan of cookies from the oven, using a pot holder. Suddenly, you feel a surge of heat through the pot holder. Why don’t you react by dropping the baking pan and spilling cookies all over the floor? pickone of these options please
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Chapter 1 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 1.4 - If a person eats 12 milligrams (mg) of salt in a...Ch. 1.4 - Glucose is metabolized to CO2 and water. Explain...Ch. 1.5 - What is the drawback of having only a single...Ch. 1.5 - Prob. 4CCCh. 1.6 - Students in the laboratory run an experiment in...Ch. 1 - Define physiology. Describe the relationship...Ch. 1 - Name the different levels of organization in the...Ch. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Define homeostasis. Name some regulated variables...
Ch. 1 - Name four major themes in physiology.Ch. 1 - Put the following parts of a reflex in the correct...Ch. 1 - The name for daily fluctuations of body functions...Ch. 1 - Mapping exercise: Make a large map showing the...Ch. 1 - Distinguish between the items in each group of...Ch. 1 - Name as many organs or body structures that...Ch. 1 - Prob. 12RQCh. 1 - Explain the differences among positive feedback,...Ch. 1 - A group of biology majors went to a mall and asked...Ch. 1 - Although dehydration is one of the most serious...Ch. 1 - Prob. 16RQCh. 1 - You performed an experiment in which you measured...Ch. 1 - Prob. 18RQCh. 1 - Prob. 19RQ
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- the course of evolution whales and sharks optimized their movements by forming a tail fluke (or tail fin) to propel the animal forward. But the direction of the propelling movements did not matter: a whale’s fluke moves vertically, and a shark’s fin moves horizontally. Either way the goal to propel the animal forward is achieved. (A) To which aspect of optimal feedback control is that related? B) Please give an example of how this can be shown experimentally and elaborate.arrow_forwardWhat does these figures illustrate in detail?arrow_forward(a)In the picture provided, what stimulus triggered the positive feedback? (b)What response was induced by this stimulus?arrow_forward
- which of the following would be false? a) summation of B and C would not change membrane b) summation of B would be an IPSP c) summation of C and A = suprathreshold stimuli d) stimulation by A would depolarize cell e) repeated stimulation by A could spatially summate and reach threshold (This would be temporal summation)arrow_forwardPart i) Label & describe what is happening at each letter in the following process. Part ii) List the 2 types of feedback systems. B A C Receptor IMBALANCE Control Center BALANCE D Effector IMBALANCE Earrow_forwardMork is an alien from planet Ggle674. Mork finds a car and tries to figure out how it works. The alien places a sensor on a wire coming from the alternator when the car is started. Mork's sensor detects an electrical current of 12 volts coming from the alternator. Mork's experiment is most closely related to the method called 1) single cell recording. O 2) EEG O 3) ablation. O 4) functional magnetic resonance imaging. O 5) transcranial magnetic stimulation.arrow_forward
- You 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 terms does A counteracting response, or being inversely proportional to the stimulus belong to? a.)Control center b.)Homeostasis c.)Stimulus-response model d.)Negative feedback e.)Positive feedback f.)Feedback modelarrow_forwardWhat component of control mechanism produces a response in the body? Group of answer choices stimulus control center receptor effectorsarrow_forward
- You made early morning run as part of your daily routineexercise during the quarantine period. After your physical activityyou always feel that your heart pounds faster, your breathingintensifies, you sweat rigorously and you feel thirsty too. Relatethese sensations with the specific feedback mechanism.arrow_forwardWhich of the following terms does The state of internal equilibrium despite external changing conditions belong to? a.)Control center b.)Homeostasis c.)Stimulus-response model d.)Negative feedback e.)Positive feedback f.)Feedback modelarrow_forward1) Which statement about the electric organ is FALSE? A) the electric eel has postively charged cells on one of its body and negatively charged cells on the other B) the electric organ consists of a stack of cells with Na+ channels on one side C) an electric eel can maximize the shock delivered to a prey animal by contacting it with both ends of its body D) in the electric organ positive ions diffusing into the cells make the surrounding membrane positive 2) Which of the following sensory systems does NOT use hair cells with kinocilia and stereocilia that have ion channels at their bases? A) lateral line system B) vestibular apparatus C) hearing D) All of these sensory systems utilize hair cells with kinocilia and stereocilia.arrow_forward
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