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Respirtory system

Teacher: science
Across
Tiny sacs at the end of the bronchioles where gas exchange occurs
Pathway of air - nose or mouth, trachea, bronchi, bronchioles, alveoli, blood
Chemical process where energy is created from food molecules combining with oxygen. Carbon dioxide and water are byproducts.
Sheet of muscle below the lungs
Another function of the respiratory system - removes ___ and ___ from lungs
Warms and moistens air
Lies alongside the esophagus and carries air to the bronchi and lungs
O2 and CO2 are exchanged between lungs and blood
Down
Smaller tubes that carry air from the bronchi, the branch out at the alveoli
Two major tubes that carry air from the trachea to the bronchioles
Movement of material from an area where molecules are crowded to an are of molecules that is less crowded
O2 and CO2 are exchanged between the blood and cells of the body
Pathway of air - blood, alveoli, bronchioles, bronchi, trachea, nose and/or mouth
Function of respiratory system - provides lungs with...