Which Feature of the Duodenal Mucosa Is a Structural Adaptation

question 32

Multiple Choice

Which feature of the duodenal mucosa is a structural adaptation for nutrient absorption?

• A)Presence of microvilli
• B)Presence of lacteals
• C)Circular folding
• D)Insertion of chief cells

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Definitions:

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, is able to elicit a conditioned response.

Unconditioned Stimulus

In behavioral psychology, a stimulus that naturally and automatically triggers a response without any learning process involved.

Conditioned Responses

Learned reactions that occur in response to previously neutral stimuli after conditioning.

Higher-order Conditioning

A complex form of classical conditioning where a stimulus is paired with a previously conditioned stimulus, rather than with an unconditioned stimulus, to elicit a response.