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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 |