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Human Body Systems Ch 5
Interactive Science Series
24
Science
8th Grade
09/18/2017

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Cards

Term
cellular respiration
Definition
the process in which the body cells break down glucose, using oxygen and releasing the chemical energy in the glucose.
Term
pharynx
Definition
throat
Term
trachea
Definition
windpipe
Term
cilia
Definition
tiny, hair like extensions that can move together in a sweeping motion
Term
bronchi
Definition
passages that take air to the lungs
Term
lungs
Definition
the main organs of the respiratory system.
Term
alveoli
Definition
tiny, thin-walled sacs of lung tissue where gases can move between air and blood
Term
diaphragm
Definition
a large, dome-shaped muscle used to breathe
Term
larynx
Definition
voice box
Term
vocal cords
Definition
folds of connective tissue stretched across the opening of the larynx
Term
tar
Definition
a dark, sticky substance that forms when tobacco burns
Term
carbon monoxide
Definition
a colorless, odorless gas that binds to hemoglobin in red blood cells
Term
nicotine
Definition
a stimulant drug in tobacco that increases heart rate and blood pressure
Term
addiction
Definition
physical dependence on something
Term
bronchitis
Definition
an irritation of the breathing passages in which the small passages become narrower and may be clogged with mucus
Term
emphysema
Definition
occurs when lung tissue is damaged and breathing becomes difficult
Term
excretion
Definition
the process of removing waste
Term
urea
Definition
a chemical that comes from the breakdown of proteins
Term
urine
Definition
a fluid containing urea and other wastes
Term
kidneys
Definition
act like filters that remove urea and other wastes from the blood but keep materials the body needs
Term
ureters
Definition
two narrow tubes that carry urine from the kidneys to the bladder
Term
urinary bladder
Definition
a muscular sac that stores urine
Term
urethra
Definition
where urine leaves the body
Term
nephron
Definition
a tiny filtering factory that removes wastes from the blood and produces urine; found in the kidney
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