Epithelial Cells of the Proximal Tubule Have a Lower Concentration

question 23

True/False

Epithelial cells of the proximal tubule have a lower concentration of Na+ than the filtrate.

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Definitions:

UCR

Unconditioned Response; an automatic and natural response elicited by a stimulus without any prior learning or conditioning.

UCS

UCS stands for Unconditioned Stimulus, a term in classical conditioning that describes a stimulus that naturally triggers a reflexive response without prior learning.

CS

Short for Conditioned Stimulus, a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

CR

A symbol commonly denoting "conditioned response", which is a learned response to a previously neutral stimulus that has become associated with an unconditioned stimulus.