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respiratory system
| Question | Answer |
|---|---|
| what would cause the medulla oblangata to increase respiratory rate | too much carbon dioxide in the bloodstream |
| the circulatory system works with the respiratory system to maintain body function during what | transporting oxygen in hemoglobin and delivering waste carbon dioxide to pulmonary capillaries |
| why does air move out of the lungs during exhalation | pressure inside the lungs is higher than atmospheric pressure |
| respiratory rhythm is regulated by which structure | medulla oblangata |
| which muscles are used during normal inhalation | diaphragm, external intercostals |
| what is the function of Type II alveolar cells | produce alveolar fluid |
| What happens in external respiration | oxygen diffuses from alveoli into capillaries, carbon dioxide diffuses from capillaries into alveoli |
| how many lobes does the left lung have | 2 |
| how many lobes does the right lung have | 3 |
| the branches of the bronchial tree from widest to narrowest are: | primary bronchi, secondary bronchi, tertiary bronchi, bronchioles |
| what is the main purpose of the trachea's cartilaginous rings | support the trachea and keep it from collapsing or overexpanding and give the the trachea flexibility to allow passage of food through the esophagus |
| what would you expect to produce the highest sound | short vocal cords, high vocal cord tension |
| the main function of the epiglottis is to: | close off the trachea to direct food into the esophagus |
| the buildup of pressure in the lungs during a sneeze functions to: | propel irritants forcefully out of the nasal cavity. |
| what can be found in the nasal cavity | mucosa, conchae, and olfactory receptors |
| what are the components of upper respiratory system | pharynx, nasal cavity, grottos, and larynx |
| what increases in a person with emphysema | residual volume |
| which membrane structure divides the thoracic cavity into two separate cavities | mediastinum |
| what is the order of the structures air passes during inspiration | trachea, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, alveoli |
| which structure covers the larynx as swallowing occurs | epiglottis |