The Major Nonelastic Source of Resistance to Air Flow in the Respiratory

question 119

Multiple Choice

The major nonelastic source of resistance to air flow in the respiratory passageways is ________.

• A) air pressure
• B) friction
• C) surfactant
• D) surface tension

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Definitions:

Actin

A protein that forms microfilaments and is involved in various cellular processes, including muscle contraction and cell movement.

Myosin

A protein that, together with actin, is responsible for muscle contraction.

Metaphase

A stage of cell division (mitosis and meiosis) where chromosomes line up at the cell's equator before being separated into the daughter cells.

Cytokinesis

Cytokinesis is the division of the cytoplasm of a parental cell into two daughter cells, occurring immediately after nuclear division in the cell cycle.