Which structures or organs is not part of the upper respiratory system?

trachea, bronchi and bronchioles, lungs

Explanation:

The upper airways or upper

respiratory tract includes :

the nose and nasal passages, paranasal sinuses, the pharynx, and the portion of the larynx above the vocal folds (cords).

The lower airways or lower respiratory tract includes:

the portion of the larynx below the vocal folds, trachea, bronchi and bronchioles.

What is respiratory track?

The respiratory tract is the part of the anatomy of the respiratory system involved with the process of respiration

a=d/t

a="triangle"v/t

explanation:

a = acceleration