a positive-feedback system is one in which a. a variable is charged in the opposite direction to the original change that initiated the system b. a variable is changed in the same direction as the original change that initiated the system c. two opposiding variables are played against each other d. the initiating variable is always increased

a positive-feedback system is one in which a. a variable is charged in the opposite direction to the original change that initiated the system b. a variable is changed in the same direction as the original change that initiated the system c. two opposiding variables are played against each other d. the initiating variable is always increased

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter1: Introduction To Physiology And Homeostasis

Section: Chapter Questions

Problem 10RE: _________ controls are inherent to an organ, whereas _________ controls are regulatory mechanisms...

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Similar questions

Draw a row diagram showing the relationships among the components of a negative-feedback control system.
_________ controls are inherent to an organ, whereas _________ controls are regulatory mechanisms initiated outside an organ that alter the activity of the organ.
With negative feedback, detection of a change brings about a response that_____ the change. a. reverses c. has no effect on b. accelerates d. mimics
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.
Negative feedback systems keep regulated variables within a normal range by ______________ any upward or downward shift in that variable, i.e. it means an _______________ response to a stimulus.
In 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, increasing
A self-amplifying chain of physiologicalevents is calleda. positive feedback.b. negative feedback.c. dynamic constancy.d. homeostasis.e. metabolism.
Positive feedback processes invloves : a) Work in anticipation of changes in regulated variable b) Lead to instability of the regulated variable. c) Tend to force physiological variables back to set point, opposite direction of deviation d) Ten to force physiological variables away from their set point, further deviating it
Which 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.
Which of this statement is INCORRECT regarding the function of hormones?a) Reproduction and sexual differentiationb) Maintenance of internal environmentc) Maintain body temperatured) Development and growth
What does negative feedback do? a. It establishes a set point. b. It changes the set point. c. It eliminates the set point. d. It reduces discrepancies from a set point.
Organismal homeostasis depends upon the presence of control systems. Give a physiological example of a negative feedback control system its positive feedback. Clearly describe the role(s) that each of the following elements plays in all control systems: such as controller, effector and receptor.