Respiratory System

2. short structures projecting from a cell and containing bundles of microtubules that move a cell through its surroundings or move fluid over the cell's surface
5. protective secretion of the mucous membranes
8. a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs
10. two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration
11. progressively smaller tubular branches of the airways
12. passing or able to pass air in and out of the lungs normally

1. the cavity behind the nose and above the roof of the mouth that filters air and moves mucous and inhaled contaminants outward and away form the lungs.
3. The passages that branch from the trachea and direct air into the lungs
4. one of the tubules forming the respiratory system of most insects and many arachnids
6. tiny sacs of lung tissue specialized for the movement of gases between air and blood
7. voice box; passageway for air moving from pharynx to trachea; contains vocal cords
9. the metabolic processes whereby certain organisms obtain energy from organic molecules