Use the Following Key to Determine the Best Answer

question 91

Multiple Choice

Use the following key to determine the best answer.
-(1) PO₂ in alveolar air
(2) PO₂ in venous blood

• A)First item is greater than the second item.
• B)First item is less than the second item.
• C)First item is equal or nearly equal to the second item.

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Definitions:

Eardrum

A thin membrane that separates the outer ear from the middle ear and vibrates in response to sound waves.

Smallest Bones

The three bones in the middle ear known as the malleus, incus, and stapes, which are essential for transmitting sound vibrations to the inner ear.

Middle Ear

The part of the ear located between the eardrum and the inner ear, containing three small bones that transmit sound vibrations.

Localize Sounds

The ability to determine the location or origin of a sound source in the environment.