What is the purpose of the paranasal sinuses that connect with the nasal cavity?
A) Gas exchange
B) Reduce the weight of the skull
C) Resonance chambers for speech
D) Both reduce the weight of the skull and resonance chambers for speech.
Correct Answer:
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Q9: Which portion of the respiratory tract is
Q10: Why is the trachea supported by C-shaped
Q11: Sound is normally produced from
A)air moving down
Q12: The epiglottis
A)contains vocal cords.
B)contains cilia.
C)prevents food from
Q13: Which of the following is NOT a
Q15: What structures enter the lungs?
A)Secondary bronchi
B)Alveoli
C)Primary bronchi
D)Trachea
Q16: What is the purpose of the mucociliary
Q17: Which of the following is NOT a
Q18: What type of tissue forms the mucosa
Q19: What is internal respiration?
A)Ventilation (breathing)
B)Gas exchange between
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