Studied by 49 people
respiration
the process where oxygen and glucose undergo chemical reactions inside cells
cilia
tiny hairlike extensions that move in a sweeping motion, found in the nose
lungs
the main organs of the respiratory system
pharynx
the throat
trachea
the windpipe
diaphragm
a large muscle under the lungs which expands and contracts, which helps with breathing
bronchi
passages that direct air into the lungs
larynx
voice box
vocal chords
folds of tissue stretched across the larynx that produce your voice
alveoli
tiny sacs of lung tissue where oxygen and carbon dioxide are exchanged
respiratory system functions
moves oxygen in and carbon dioxide and water out of the body
path of air
nose, pharynx, trachea, lungs (bronchi, alveoli)
gas exchange
in the alveoli, when carbon dioxide and oxygen are exchanged
tar
a black, sticky substance from tobacco
carbon monoxide
a gas that binds to hemoglobin in red blood cells, where the oxygen should go
bronchitis
an irritation of breathing passages, which makes them too narrow
nicotine
an addictive stimulant drug that increases blood pressure and heart rate
emphysema
a disease that destroys lung tissue and lung function
addiction
a physical and/or psychological dependence
lung cancer
when cells make tumors in the lungs
atherosclerosis
build up of fatty materials on blood vessels
passive smoking
when you inhale smoke from other people’s cigarettes
excretion
the removal of wastes from the body
kidneys
the major organs of the excretory system, which remove waste
urea
a chemical that comes from the breakdown of proteins
nephrons
tiny flitering structures in the kidneys that remove wastes
urethra
a small tube that lets urine leave your body
urine
a fluid that contains fluid and other wastes
bladder
a sac that stores urine
ureters
two narrow tubes that carry urine from kidneys to bladder
skin
excretes sweat
liver
breaks down proteins
Note 
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