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Level 11

The respiratory system


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pharynx
at the back of the throat, a structure found between the mouth and nasal cavities to the larynx
larynx
a structure located between the pharynx and the trachea, containing the vocal cords
epiglottis
a piece of cartilage that covers the larynx when swallowing, preventing food from entering the trachea
paranasal sinus
one of four pairs of cavities around the nasal cavity
windpipe
trachea
bronchus
any of the major air passages of the lungs coming off of the trachea
bronchiole
any of the tiny branches coming off of the bronchi in the lungs
cilium
hairlike organelles that line the bronchus in the lungs to remove microbes and debris
lungs
the main respiratory organs found in the chest which take in air to collect oxygen and eliminate CO2
alveolus
small cavity - ex: tiny air sacs in the lungs that allow for gas exchange
RC
the region in the medulla oblongata that determines which signals to send to the respiratory muscles
intercostal muscles
a group of muscles found between the ribs, involved in breathing
diaphragm
a group of muscles separating the thorax from the abdomen that are involved in breathing
pleura
One of the two membranes around the lungs