Question

The lower respiratory tract begins inferior to which organ (ie which organ below is the most inferior organ of the upper respiratory tract)?

A. trachea
B. lungs
C. larynx
D. alveoli
E. none of these

Answer 1

The lower respiratory tract begins below the larynx in the upper respiratory tract. The most inferior organ of the upper respiratory tract is the larynx.

Step-by-step explanation:

The lower respiratory tract begins below the larynx in the upper respiratory tract. The larynx is the most inferior organ in the upper respiratory tract. The lower respiratory tract includes structures such as the trachea, bronchi, and lungs. The alveoli, which are responsible for gas exchange, are found in the lungs.