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LE Resp System Vocab
LE Respiratory System Vocab
| Term | Definition |
|---|---|
| Filtration | removal of foreign materials from respiratory system by means of cilia |
| Respiration | the process by which the chemical bond energy stored in nutrients is released for use in the cells |
| Breathing | to take air, oxygen, etc., into the lungs and expel it; inhale and exhale; respire |
| Inhalation | to take in air, oxygen to lungs through nose &/or mouth |
| Exhalation | to expel air, carbon dioxide from lungs through nose &/or mouth |
| Pharynx | area at the back of the throat that connects the mouth and nasal passages with the esophagus |
| Larynx | “voice box” found at the upper part of the trachea |
| Epiglottis | – flap that covers the glottis (top) of the trachea to prevent food from being inhaled |
| Esophagus | tube that connects pharynx to the stomach and allows food to pass into the digestive system |
| Trachea | “wind pipe”; tube containing cartilage rings that connects the pharynx to the bronchi |
| Bronchi | 2 main branches of the trachea that enter the lungs |
| Bronchioli | any of the smallest bronchial tubes, usually ending in alveoli |
| Alveoli | “air sacs”; site of O2/CO2 exchange with surrounding capillaries |
| Diaphragm | muscle separating the thoracic cavity (chest) from the abdominal cavity |
| Bronchitis | inflammation of lining of bronchial tubes |
| Asthma | allergic reaction leading to constriction of bronchial tubes resulting in difficulty breathing |
| Emphysema | enlargement and degeneration of alveoli leading to decreased lung capacity |