Examlex
Which of the following would be an unconditioned response (UCR) in an experiment like Pavlov's?
Heart
A muscular organ in most animals, which pumps blood through the circulatory system by rhythmic contraction and dilation.
Rate
The speed or frequency at which an event or action occurs within a specified period.
Capillary Refill Time
The time taken for color to return to an external capillary bed after pressure is applied, indicating the circulatory status.
Palpating
The act of examining part of the body by touch, especially for medical purposes.
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