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Respiratorys
| Question | Answer |
|---|---|
| What are the functionsn of the Respiratory system? | Gas exchange, non-specific defense against microbes |
| What are the functions of the nasal cavity? | Filters, warms and moisturizes air |
| What are hair and cilia used for? | Filtration |
| What is the function of mucus? | Traps microbes and prevents dehydration of tissues |
| Function of Pharynx | region that connects the nasal cavity to the trachea |
| Function of Larynx | Voice box made of cartilage surrounding ligaments |
| How is sound produced | as air moves over the vocal cords |
| function of Trachea | rings of cartilage covered with epithelial tissue, covered with mucus and cilia |
| Function of Bronchi | 2 branches off the trachea that moves to the right and left of the thoracic cavity. |
| Function of Bronchioles | smaller branches off the bronchi, covered with mucus |
| Function of Alveoli | clusters of air sacs at the end of the bronchioles; made of simple epithelial tissue to facilitate gas exchange, covered with capillaries |
| What are the lungs? | Tissue surrounding the bronchioles and alveoli |
| What are the lungs covered by? | Pleural membrane |
| How does surfactant relate to keeping the lungs inflated? | ?Have to have it to keep longs inflated |
| ?What is ventilation? | act of breathing |
| What is inhalation? | diaphragm contracts, moves down, volume of chest cavity increases-air moves in |
| What is exhalation? | diaphragm relaxes, moves up, volume of chest cavity decreases= air pushed out |
| Gases always _____ from ___ to ___ concentrations. this is ______ | diffuse, high, low, passive transport |
| What is control of ventilatio rate? | nervous system which sets the rate of contractions for the diaphragm |
| ?The normal rate of contraction is? | 10-14/ min which is elevated by increased oxygen demands |
| What is in the brainstem? | Sensors, breathing conrol centers |
| WQhat the things in the brainstem influenced by? | Cos levels, pH levels, altitude and temp |
| How does breathing begin in newborn babies? | once the umbilical cord fails to provide gas exchange, the co2 increases to level |
| What are the steps in gas exchange? | Ventilation, inhalation, gas exchange in the body |
| What is hypoxia | a diagnostic term referring to reduced oxygen to the tissues |
| What is anoxia? | a diagnostic term referring to lack of oxygen to the tissueswhich can result in tissue death |
Created by:
britchwo
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