From Where Do the Fluids of the Respiratory Tract Originate

question 17

Multiple Choice

From where do the fluids of the respiratory tract originate?

• A) Specialized mucous glands called goblet cells
• B) Lymph fluid drawn across nasal membranes by osmosis
• C) Specialized beta cells in the islets of Langerhans
• D) Cells that produce aqueous humor

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Definitions:

Bundle of His

A collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches.

Pulmonary Veins

Blood vessels that carry oxygenated blood from the lungs to the left atrium of the heart.

Left Atrium

The heart's upper left chamber that receives oxygen-rich blood from the lungs and pumps it into the left ventricle.

Fossa Ovalis

A depression in the right atrium of the heart, the remnant of the fetal foramen ovale.