Biology 241 - Accelerated General Human Physiology » Summer 2021 » Lab Q1

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Question #1
Choose the correct order for a homeostasis loop.
A.   effector, efferent pathway, integrating center, afferent pathway, sensor
B.   afferent pathway, integrating center, efferent pathway, sensor, effector
C.   sensor, afferent pathway, integrating center, efferent pathway, effector
D.   sensor, efferent pathway, integrating center, afferent pathway, effector
Question #2
Which element in a homeostasis loop sends the signal from the sensor to the integrating center?
A.   motor pathway
B.   afferent pathway
C.   efferent pathway
D.   integrating pathway
Question #3
What concisely describes the main objective of homeostasis?
A.   dynamic constancy
B.   dynamic deviations
C.   static constancy
D.   static consistency
Question #4
Homeostasis maintains life by adjusting to the various stimuli the body receives. In most cases, what is the correct description of a response loop that maintains a compensated healthy state?
A.   negative coupling
B.   positive coupling
C.   negative feedback
D.   positive feedback
Question #5
Healthy compensated outcomes are always the result of negative feedback loops and positive feedback loops always lead to a diseased outcome.
A.   FALSE
B.   TRUE
Question #6
Match the response loop element description with the physiological example. response
A.   change in body temperature
B.   change in body muscles
Question #7
Match the response loop element description with the physiological example. sensor
A.   thermoregulatory center in hypothalamus
B.   thermoreceptors
Question #8
Match the response loop element description with the physiological example. integrating center
A.   thermoreceptors
B.   thermoregulatory center in hypothalamus
Question #9
Match the response loop element description with the physiological example. effector
A.   change in body temperature
B.   skeletal muscles
Question #10
What kind of a graph waveform is indicative that negative feedback in operating in a response loop?
A.   increasing staircase waveform
B.   fluctuating sinusoidal waveform
C.   exponential waveform
D.   decreasing linear waveform
Question #11
In a negative feedback response loop, the response is always to the stimulus.
A.   subtracting
B.   opposite
C.   similar
D.   adding

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