respiratory system

1. method of movement for respiratory gases; movement from areas of high to low concentration
5. 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.
7. tiny air sacks in the lungs
8. Bone structure of the human body that protects our lungs and heart.
9. protective secretion of the mucous membrane
10. passing or able to pass air in and out of the lungs normally
11. voice box; passageway for air moving from pharynx to trachea; contains vocal cords
12. dome shaped muscle that divides the thoracic cavity from the abdominal cavity
13. two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration

2. Muscles that hold the rib cage together which also help to protect the lungs and heart.
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. 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
8. the metabolic processes whereby certain organisms obtain energy from organic molecules
10. progressively smaller tubular branches of the airwaysgases between air and blood