Irregular Bones and Histology of Bone Quiz

The primary opening, the ______, lead to the nasal cavity, the inner chamber.

The nasal cavity consists of nasal hairs (vibrissae) and ______, both of which filter the air.

Breathing refers to the movement of air between the lungs and the ______.

The respiratory system can be anatomically divided into the upper and lower respiratory ______.

Pulmonary ventilation, external respiration, gas transport, and internal respiration are functions of the ______ system.

Inhalation decreases the air pressure within the ______.

The resulting difference in air pressure between the lungs and the atmosphere causes air to rush ______ the lungs.

Exhalation increases in air pressure in the ______.

Respiratory muscle contract to increase the ______ of the lungs.

Respiratory muscle contract to facilitate pulmonary gas ______.