urinary system
a pair of organs found in lower back on both sides of the backbone
kidneys
capillaries join together to form tiny (blank)
veins
when something is swallowed this moves to cover your windpipe
epiglottis
the main job
carry gases from air to blood
your hearts largest artery
aorta
organs beside kidneys that get rid of gas waste
lungs
flaps that act like doors
valves
a tight round muscle is at the bottom of the esophagus
stomach
a tube that moves air from the larynx to the lungs
trachea
squeezes blood into the left ventricle
left atrium
holds urine until exited its body
bladder
carry blood to the heart
veins
organs that send chemicals to the small intestine to break down food
liver and pancreas
where oxygen enters the blood and carbon dioxide leaves the blood
air sacs
fills with blood that carries waste when resting
right atrium
a tube that moves urine to the bladder from kidneys
ureters
transport blood from the heart
arteries
they give the body more chances to absorb food since they are filled with blood vessels
villi
part of cells that look like tiny hairs
the cilia
pumps blood into the aorta
left ventricle
types of waste
gas,solid,liquid
tiny veins join together in a network of
capillaries
helpful bacteria is found in the (blank)that help create vitamins and keep harmful bacteria out
large intestine
a thick, sticky fluid that traps and germs that may be in the air
mucus
shrinks, pumping blood into an artery leading to the lungs
right ventricle