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human anatomy
Chapter 13!
| Question | Answer |
|---|---|
| In healthy lungs, it is always lower than atmospheric pressure (that is, it is negative pressure) | Intrapleural pressure |
| Pressure of air outside the body | Atmospheric pressure |
| As it decreases, air flows into the passageways of the lungs | Intrapulmonary pressure |
| As it increases over atmospheric pressure, air flows out of the lungs | Intrapulmonary pressure |
| If this pressure becomes equal to the atmospheric prssure, the lungs collapse | Intrapleural pressure |
| Rises well over atmospheric pressure during a forceful cough | Intrapulmonary pressure |
| smallest conducting respiratory passageways | Bronchioles |
| Separates the oral and nasal cavities | Palate |
| Major nerve, stimulating the diaphragm | phrenic nerve |
| food passageway posterior to the trachea | Esophagus |
| Closes off the larynx during swallowing | Epiglottis |
| windpipe | trachea |
| actual site of gas exchanges | alveoli |
| pleural layer covering the thorax walls | parietal pleura |
| Pleural layer covering the lungs | visceral pleura |
| lumen of larynx | Glottis |
| Fleshy loves in the nasal cavity which increase its surface area | Conchae |
| Which of the primary bronchi is larger in diameter? L/R | right |
| Which of the primary bronchi is more horizontal? L/R | left |
| which of the primary bronchi is the most common site for lodging of a foreign object that has entered the respiratory passageways? L/R | right |