Explain How the Structure of the Small Intestine Relates to Its

question 24

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Explain how the structure of the small intestine relates to its function in absorption. Include a description of brush border, villi and microvilli, lacteal, and capillary.

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Definitions:

UCR

Unconditioned Response, which is an automatic, natural reaction to a stimulus in classical conditioning theory.

UCS

Unconditioned Stimulus, an aspect of classical conditioning theory, referring to a stimulus that naturally triggers a reflexive or involuntary response without prior learning.

CS

Stands for Conditioned Stimulus in classical conditioning; a neutral stimulus that, after being repeatedly paired with an unconditioned stimulus, becomes able to elicit a conditioned response.

CR

Conditional Reflex; a learned response to a specified stimulus.