The Paranasal Sinuses Function in

question 64

Multiple Choice

The paranasal sinuses function in

• A) contributing to the floor of the cranium.
• B) deflecting inhaled air toward the olfactory receptors located near the upper portions of the nasal cavity.
• C) supporting and stabilizing the position of the larynx.
• D) forming the floor and medial portion of the rim of the orbit.
• E) lightening the skull and providing an extensive area of mucous epithelium.

---

Definitions:

Living Units

Spaces or environments designed for habitation or residence of living organisms, including humans, animals, or plants.

Cell Membrane

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.

Carrier Molecules

Specific proteins that facilitate the transport of substances across cell membranes.

Gland

An organ in the body that secretes particular chemical substances for use in the body or for discharge into the surroundings.