Cumulative Exam — Cumulative exam Answers

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45

Which is a narrow passage that connects the pinna to the tympanic membrane?

A
vitreous humor
B
vestibular system
C
Eustachian tube
D
external auditory canal
50

Which structure carries blood to the lungs, where the blood acquires oxygen?

A
left atrium
B
aortic valve
C
vena cava
D
pulmonary artery

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