MasteringA&P with Pearson eText -- Standalone Access Card -- for Essentials of Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780321957115
Author: Marieb
Publisher: Pearson College Div
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Textbook Question
Chapter 1, Problem 2MC
Which of the following is (are) involved in maintaining homeostasis?
a. Effector
c. Receptor
e. Lack of change
b. Control center
d. Feedback
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Students have asked these similar questions
Which 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?
In 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.
Which 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.
Chapter 1 Solutions
MasteringA&P with Pearson eText -- Standalone Access Card -- for Essentials of Human Anatomy & Physiology (11th Edition)
Ch. 1 - Prob. 1MCCh. 1 - Which of the following is (are) involved in...Ch. 1 - More than one choice may apply. Which of the...Ch. 1 - More than one choice may apply. Using the terms...Ch. 1 - Match the proper anatomical term (column B) with...Ch. 1 - Prob. 6MCCh. 1 - A neurosurgeon orders a spinal tap for a patient....Ch. 1 - More than one choice may apply. Which of the...Ch. 1 - Define anatomy and physiology.Ch. 1 - List the 11 organ systems of the body, briefly...
Ch. 1 - Prob. 11SAECh. 1 - Explain the difference between positive and...Ch. 1 - Many body structures are symmetrical. Are the...Ch. 1 - Describe the locations that the following body...Ch. 1 - Which of the following organ systems-digestive,...Ch. 1 - A diagnostic radiographer told John that she was...Ch. 1 - 23. How is the concept of homeostasis (or its...Ch. 1 - Jennifer fell off her motorcycle and tore a nerve...Ch. 1 - Mr. Garica is behaving abnormally and doctors...Ch. 1 - 19. Parathyroid hormone (PTH) is secreted in...Ch. 1 - 20. Mr. Harvey, a computer programmer, has been...
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- Our 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_forwardWhich 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_forwardThe "cause" for something to happen is called: A. Response B. Effect C. Homeostasis D. Stimulusarrow_forward
- 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_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_forwardWhich of the following is involved in signaling/communication during cellular processes: Select one: a. myostatin receptor b. all of the above c. RAS d. acetylcholine e. calcium Clear my choicearrow_forward
- 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.arrow_forwardMatch the body temperature control item to the appropriate location in the negative feedback loop. Effector when variable is low Effector when variable is high Control center Sensor Controlled variable A. Muscles for shivering and goosebumps B. Nerves in skin C. Brain D. Sweat glands E. Temperaturearrow_forwardA self-amplifying chain of physiologicalevents is calleda. positive feedback.b. negative feedback.c. dynamic constancy.d. homeostasis.e. metabolism.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 situations illustrates that a homeostatic mechanism is not operating properly? a. acute high blood pressure b. normalized blood glucose levels c. dailt fluid intake equals dailty fluid output d. all of these illustrate homestatic mechanisms operating properlyarrow_forwardWhich of the following rows correctly describe the direction of a nerve impulse in a reflex arc? a. Receptor → spinal cord → brain → effector b. effector → motor neuron → spinal cord → brain → sensory neuron → receptor c. sensory neuron → spinal cord → motor neuron → effector d. sensory neuron → brain → motor neuron → effectorarrow_forward
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