Identify and compare the histology of the different structures of the respiratory system; and to Identify the changes in the epithelium of the respiratory

Why it is important for the air to pass through nasal cavity before it enters the lungs?

When someone breathes in they can completely exchange old air for new air. True or false.

For each of the following statements, please apply your knowledge regarding anatomy of the upper respiratory tract by indicating which of the following are TRUE: 42. Some people have a quiet voice because their vocal cords are thin and short compared to others (with a loud voice), and therefore less able to vibrate and create loud sounds. F 43. Children typically have higher pitched voices than adults because their vocal cords are physically shorter and thinner, and they have smaller sinuses within in the skull. T 44. Vocal and vestibular folds can adduct during an effort closure, facilitating an increase in thoracic pressure (i.e. during Valsalva maneuver) T