8. What are the structures that branch off of the trachea into the lower airway?-
ANS Bronchi
EXPLANATION the trachea splits at the carina into the left and right bronchus. Thebronchi get
smaller and smaller until it reaches the terminal bronchioles where thealveoli are located.
9. What is the normal range of breaths per minute for an adult
ANS 12-20
10. A febrile 44 year old male complains of shortness of breath and has dull chest pain.
he has been coughing up "rusty" sputum for the last 3 days. whatis the most likely cause?
ANS Pneumonia
EXPLANATION
Pneumonia is an infection of the lung tissue and the "rusty" sputum(spit) is a sign of a lower
airway infection. He is febrile (has a fever) from an immuneresponse to the infection, and the
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