Introduction Answers

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Which of the following best describes the upper respiratory tract?

It takes air in from outside the body.

It is where oxygen and carbon dioxide are exchanged.

It is located inside the thorax.

It is not directly involved in respiration.

Where are the nasal cavities found?

in the forehead

behind the chin

between the eyes

behind the nostrils

The pharynx is where the throat divides into the and the esophagus.

larynx

trachea

sinuses

nasal cavity

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