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Respitory Systems
Question | Answer |
---|---|
alveoli | air sacs at the end of the bronchioles -surrounded by capillaries that allow oxygen and CO2 to be exchanged between the blood and lungs |
Hyperpnea | Increased rate and depth of breathing |
Hypoxia | Decreased amounts of oxygen to tissues |
Trachea | -windpipe -carries air from the pharynx to the bronchi -subdivides into two bronchi, each entering one lung |
larynx | -voice box -contains vocal cords |
Nasopharynx | -upper portion of larynx -contains pharyngeal tonsils(adenoids) -located behind the nose |
Oropharynx | -middle portion of pharynx -contains the palatine tonsils -located behind the mouth |
Epiglottis | flap of cartilage that covers the larynx to prevent aspiration |
cellular respiration | the use of oxygen and nutrients to produce energy, water, CO2, and heat |
Epistaxis | nosebleed |
dyspnea | painful or difficult breathing |
Bronchioles | smallest subdivision of the bronchi |
Tachypnea | rapid shallow breathing |
asthma | obstruction of the bronchiole S&S:-coughing -wheezing -dyspnea RX:-bronchodilator -anti-inflammatory -oxygen |
function of the nose | warm, filter, and moisten air passing through |
nasal septum | seperates the nasal cavities |
respitory system | to take in oxygen needed for body cells and remove CO2 |
internal respiration | exchange of oxygen and CO2 between the blood and body cells |
external respiration | exchange of oxygen and CO2 between the blood in capillaries surrounding alveoli |
diaphragm | major muscle of respiration -divides the thoracic cavity and the abdominal cavity |
ventilation | the process of breathing inspiration: taking in air expiration: when air is forced out of the lungs |
lungs | right lung contains 3 lobes left lung contains 2 lobes |
pleura | serous membrane that covers the lungs to prevent friction when lungs expand and contract |
sinuses | cavities in the skull that warm and moisten air and provide resonance to the voice |
pharynx | (the throat) divided into three portions upper portion is the nasopharynx middle portion is the oropharynx lowest portion is the laryngopharynx |