What separates the lungs from the thoracic cavity?
A) pleurae
B) alveoli
C) cartilaginous rings
D) bone
E) skeletal muscle
Correct Answer:
Verified
Q20: The respiratory system is responsible for
A) oxygen
Q21: Muscle contraction is required for expiration.
Q22: Which of the following is not part
Q23: When the glottis becomes narrower,
A) the pitch
Q24: The right lung is larger than the
Q26: Sound is produced when air rushes into
Q27: The pharynx contains the tonsils,which protect against
Q28: The trachea and upper bronchial tree are
Q29: Which part of the lower respiratory tract
Q30: Why is the actual flow of air
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