You feel fine as you sit down in your usual seat in German class. However, when Dr. Kraus announces that there will be a pop quiz on over 100 of the most difficult vocabulary words covered in the last few class sessions, your heart starts pounding and you get a queasy feeling in your stomach. This reaction is most likely a(n):.
A. CR
B. UCR
C. CS
D. UCS

A. CR

Explanation:

CR which stands for Cardiorespiratory simply involves all the activities that has to do with heart rate and breathing. The Cardiorespiratory stays balanced under a calm situation but triggers when in fear, danger, excited or anu other activities that can lead to fast heart rate.

Having the feeling where your heart your heart starts pounding and you get a queasy feeling in your stomach because of the quiz announcement is a reaction of Cardiorespiratory.

The announcement trigger the CR.

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