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A Challenge Research
Respiratory System
| Question | Answer |
|---|---|
| alveoli | tiny air sacs by which oxygen enters and carbon dioxide leaves via the bloodstream during breathing; found on the tips of the bronchioles |
| lungs | two organs that pass oxygen into every red blood cell carried through their capillaries; expands to suck air in and shrinks to force air out |
| bronchi | a branch of the trachea that carries air to the lungs; it further divides into the bronchioles |
| mouth | has a tongue that helps to shape sounds in the larynx; a secondary channel to move air to the throat |
| bronchiole | The final, smallest branches of the lungs' air passage |
| nasal passage | An opening, lined with tiny hair-like cells, that channels air from the nostrils to the throat and has odor receptors |
| diaphragm | A muscular wall that pulls air into the lungs by contracting downwards |
| nostrils | Either of the openings in the nose |
| epiglottis | A flaplike structure made of cartilage that stops food from entering the larynx and lungs |
| pharynx | A tube that extends from the nasal cavity down the neck to the esophagus; also called the throat |
| pleura | A membrane enveloping the lungs |
| trachea | Carries air to and from the lungs; also called the windpipe |
| larynx | Also known as the voice box, this hollow passageway links the throat to the trachea |
Created by:
MrsHough
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