RespiratorySystem
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each of the black spaces below before clicking
on it to display the answer.
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| Respiratory system does what? | Delivers oxygen to and from the blood.
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| Upper respiratory tract contains: | nose (nasal cavity, sinuses), mouth, larynx, and trachea (windpipe)
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| lower respiratory tract contains: | lungs, bronchi, and alveoli
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| URI | upper respiratory infection
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| Respiration | the act of breathing
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| inspiration | muscle contraction. increases lung volume, allowing air to rush in. 21% oxygen, no CO2.
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| expiration | muscle relaxation. decreases lung volume, air passively flows out. 16% oxygen 4.5% CO2.
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| pulmonary circulatory circuit | the process whereby oxygen and CO2 are delivered to and from the lungs.
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| oxygen-poor blood | travels to the right atrium then to the right ventricle
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| oxygen-rich blood | pulmonary veins carry to the heart for distibution
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| nose (nasal hairs and mucus) | filter, warms, and moistens
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| when food is swallowed | the opening of the larynx (the epiglottis) automatically closes, preventing food from being inhaled
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| larynx | also contains the vocal cords
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| bronchi divide into smaller tubes called | bronchioles
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| bronchial stuctures contain | cilia
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| alveoli | small, thin-walled "balloons" arranged in clusters
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| gas exchange occurs where? | at the alveoli
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| functions of the respiratory system | breathing process, exchange of O and CO2, enable speech production
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| epiglottis | acts as a lid or flap that covers the larynx and trachea (airway) so food does not enter the lungs
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| trachea | no gaseous exchange
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| bronchi | c-shaped cartilage rings with smooth muscle, each bronchi divides into bronchioles, terminate in air sacs called aveoli
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| pleuralitis | inflamed lungs
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| phrenic nerve | conveys impulses between CNS and some other body region
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| external respiration | exchange of gases in lungs
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| internal respiration | exchange of gases within cells of the body organs and tissues
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| vetilation | movement of air
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| COPD | chronic obstructive pulmonary disease (COLD)
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| Dyspnea | difficulty breathing, shortness of breath
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| Bradypnea | slow breathing
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| Tachypnea | fast breathing
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| PND | paroxysmal nocturnal dyspnea. acute dyspnea caused by lung conjestion and edema that results from partial heart failure and occurs suddenly at night.
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| expectorants | expell mucus
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| barrel-chest | chest stays in a constant expansion to compensate for lack of oxygen
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| avoid aspirin in children | because it could cause Reyes syndrome
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| Can cause COPD | asthma, chronic Bronchitis, emohysema
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| influenza |
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Created by:
SpecialK1942
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