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32 terms

Excretory System

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kidneys
major excretory organs, eliminate urea, excess water and some other wastes
urea
excess water and some other waste materials released by the cells after cellular respiration
urine
watery fluid produced by the kidneys
ureters
The tubes that carry urine from the kindeys to the bladder.
bladder
sac like, muscular organ that stores urine until it is released from the body
urethra
tube leading from the urinary bladder to the outside of the body
main function of the excretory system
to filter out cellular wastes, toxins, and excess water that result from cellular respiration
300 times a day
your kidneys filter your blood
nephrons
millions of tiny filtering factories in the kidneys
tiny structures that remove wast from the blood and produce uring
nephrons
homeostasis
kidneys maintain ____ by regulating the amount of water in the body
urine is being formed
When ____ water is passed from the tube back in to the blood stream
depends on conditions both inside and out
the exact amount of water that is reabsorbed
when it is hot
a lot of water is absorbed
when it is cold
less water is absorbed
other organs of excretion
lungs, skin and liver
sweat glands
function in excretion because water and some chemical wastes are excreted in perspiration
integumentary system
another name for skin
prevents water loss
the skin covers the body and
infection and injury
the skin protects the body from
body temperature
the skin regulates
waste in sweat
the skin eliminates
about the environment
the skin gathers information
eat properly
to maintain healthy skin
drink enough water
to keep skin hydrated
limit sun exposure
to protect the skin
clean and dry
keep skin
remove wastes
several systems in your body
urinary system
disposes of liquid waste products removed from the blood
respiratory system
disposes of water vapor and waste gases from the blood
digestive system
disposes of solid waste products from food
skin
releases wastes through sweat glands