LSC ANATOMY & PHYSIOLOGY LL W/ACCESS
4th Edition
ISBN: 9781264893119
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 1, Problem 10DYKB
Summary Introduction
Introduction:
The control system of homeostasis is separated into two categories based on whether the system amplifies the stimulus in the same direction or it maintains the variable in normal range in the opposite direction. The two types of feedback control include positive feedback and negative feedback respectively.
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Chapter 1 Solutions
LSC ANATOMY & PHYSIOLOGY LL W/ACCESS
Ch. 1.1 - What is the relationship between anatomy and...Ch. 1.1 - How might knowledge of surface anatomy be...Ch. 1.1 - Which field of physiology examines how the heart,...Ch. 1.2 - Compare and contrast how anatomists and...Ch. 1.4 - Prob. 6WDYLCh. 1.4 - Prob. 8WDYLCh. 1.5 - Prob. 9WDYLCh. 1.5 - Prob. 10WDYLCh. 1.5 - Prob. 12WDYLCh. 1.5 - Prob. 13WDYL
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- 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.arrow_forwardOur nerve impulse travels from one neuron to the next in the form of. a. chemical signal b. electrical signal c. electromagnetic signal d. pressure signalarrow_forwardIn the absence of any environmental cues, a circadian rhythm is said to bea. entrained.b. in phase.c. free running.d. phase-shifted.e. no longer present.arrow_forward
- 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 stimulusarrow_forwardThe release of a neurotransmitter from a terminal button produces an inhibitory postsynaptic potential (IPSP) in the postsynaptic neuron. What is the most likely mechanism by which this occurs? A. the neurotransmitter opens chemically activated chloride channels B. the neurotransmitter activates a second messenger which then opens calcium channels C. the neurotransmitter is glutamate D. the neurotransmitter acts on a G-protein linked receptor which opens sodium channelsarrow_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_forward
- Which of the following terms does The information flow from the outside to the inside and then to the effectors belong to? a.)Control center b.)Homeostasis c.)Stimulus-response model d.)Negative feedback e.)Positive feedback f.)Feedback modelarrow_forwardThe reflex arc is the fastest way the body has to move a body part from danger or away from the source of pain. Have you ever noticed your own reflex response? Did you notice that you felt the pain after you yanked your hand away from the source of pain? Which is the sequence of structures involved in a reflex response? a. motor neurons → effectors → brain → sensory neurons → interneurons b. effectors → sensory neurons → brain → motor neurons c. sensory neurons → interneurons → motor neurons → effectors d. sensory neurons → motor neurons → interneurons → effectorsarrow_forwardGive 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_forward
- Once the gated channels are open and positive ions begin to enter the neuron,we have the start of a(n) A.stimulus B.resting potential C.a reaction D.impulsearrow_forwardWhich 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.arrow_forwardHeroin mimics the actions of endorphins, inhibiting pain signals and creating a “high” feeling. Heroin is an example of a(n): a. protagonist. c. agonist. b. antagonist. d. glial cell.arrow_forward
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