THORAX ABDOMEN AND PELVIS

MEDICAL

PLEURA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the structure that divides the upper airways from the lower airways?
A
Thyroid cartilage
B
main bronchi
C
cricoid cartilage
D
Trachea
Explanation: 

Detailed explanation-1: -The nasal septum that is composed of bone and cartilage divides the nasal cavity into right and left chambers called nasal fossae. The lateral wall of the fossa gives rise to three folds of tissues: the superior, middle, and inferior nasal conchae.

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