Openings of the Internal Nose Include the Internal Nares (Choanae)

question 39

True/False

Openings of the internal nose include the internal nares (choanae) and the ducts that connect to all paranasal sinuses.

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Definitions:

Aquaporins

Membrane proteins that serve as channels in the transfer of water, and sometimes small solutes across the cell membrane.

Active Transport

The movement of substances across cell membranes against their concentration gradient, requiring energy expenditure by the cell.

Connexin Molecules

Protein molecules that assemble into gap junctions, facilitating communication between adjacent cells by allowing the passage of ions and small molecules.

Sodium-Potassium Pump

A vital cell membrane protein that transports sodium ions out of and potassium ions into cells, maintaining cellular electrochemical gradients.