What Is Called the "Functional Unit of the Lungs

question 62

Multiple Choice

What is called the "functional unit of the lungs"?

• A) Only the alveoli
• B) Acinus
• C) Alveolar-capillary membranes
• D) Terminal bronchioles

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Definitions:

Small Intestine

A long, coiled part of the digestive system where most of the absorption of nutrients occurs.

Collagen

A protein that is a major component of connective tissues in the body, providing structural support and strength.

Absorption

The process by which substances are taken up by a tissue, such as the absorption of nutrients by the intestines.

Vitamin C

A water-soluble vitamin found in various foods, necessary for the growth, development, and repair of all body tissues, and functioning as an antioxidant.