Paracellular Absorption of Calcium ____

question 81

Multiple Choice

Paracellular absorption of calcium ____.

• A)occurs by diffusion mainly in the jejunum and ileum
• B)requires a membrane channel protein called TRPV6
• C)requires energy and is saturable
• D)increases with low dietary calcium intakes

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Definitions:

Intubation

The insertion of a tube into a patient's airway to maintain an open airway or administer certain drugs.

Conchae

Curved shelves of bone located inside the nasal cavity that increase its surface area for the purpose of warming, moisturizing, and filtering the air breathed in through the nose.

Yawning

An involuntary action involving a deep inhalation followed by a wider opening of the mouth, often due to tiredness or boredom.

Lung Perfusion Scan

A diagnostic test that uses a radioactive substance to evaluate the circulation of blood in the lungs.