What Is the Normal Range of PAO₂ - PaO₂ for Healthy

question 26

Multiple Choice

What is the normal range of PAO₂ - PaO₂ for healthy young adults breathing room air?

• A)5 to 10 mm Hg
• B)10 to 20 mm Hg
• C)20 to 30 mm Hg
• D)50 to 60 mm Hg

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Definitions:

Ciliary Body

A ring-shaped tissue in the eye that connects the iris to the choroid, responsible for controlling the shape of the lens and producing aqueous humor.

Anterior Chamber

The fluid-filled space in the eye between the cornea and the iris, involved in maintaining eye pressure and nourishment of nearby tissues.

Cornea

The transparent front part of the eye that covers the iris, pupil, and anterior chamber, contributing to the eye's focusing power.

Tactile (Meissner's) Corpuscle

A type of nerve ending in the skin that is responsible for sensitivity to light touch.