click below
click below
Normal Size Small Size show me how
A&P CH16 key terms
A&P CH16 Respiratory System
| Term | Definition |
|---|---|
| alveolus | an air sac of a lung; saclike structure |
| bronchial tree | the bronchi and their branches that carry air from the trachea to the alveoli if the lungs |
| carbaminohemoglobin | compound formed by the union of carbon dioxide and hemoglobin |
| carbonic anhydrase | enzyme that catalyzes the reactions between carbon dioxide and water to form carbonic acid |
| cellular respiration | cellular process that releases energy from organic compounds |
| expiration | expulsion of air from the lungs |
| glottis | slit like opening between the true vocal folds or vocal cords |
| hemoglobin | pigment of red blood cells that transports oxygen |
| hyperventilation | abnormally deep and prolonged breathing |
| inspiration | breathing in; inhalation |
| oxyhemoglobin | compound formed when oxygen combines with hemoglobin |
| partial pressure | the pressure one gas produces in a mixture of gases |
| pleural cavity | potential space between pleural membranes |
| respiratory capacities | value obtained by adding two or more respiratory volumes |
| respiratory center | portion of the brainstem that controls breathing depth and rate |
| respiratory membrane | membrane composed of a capillary wall and an alveolar wall through |
| respiratory volume | different intensities in breathing move different volumes of air in or out of the lungs; four distinct types: tidal volume, inspiratory reserve volume, expiratory reserve volume, and residual volume |
| surfactant | substance produced by the lungs that reduces the surface tension within the alveoli |