science excretory system test
Terms
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- sphincter
- a muscle shaped like a donut that squeezes togetherto stop unwanted urinefrom going into the urethra
- capsule
- hollowuter portion of the nephron
- medulla
- the inner tissue of a kiney
- cortex
- the tough protective outer layer of a kidney
- renal vein
- major blood vessel that brings claened blood from the kidneys to the rest of the body
- liver
- an organ that breaks down protiens to parts that can be excreted
- skin
- an ogan that allows water and salts to be excreted though pores
- lungs
- an organ that excrets carbon dioxide
- renal artery
- major blod vessel that brings waste filles blood to the kidneys
- urethra
- small tude through which urine flows from the body
- excretion
- the process by which wastes are removed from the body
- urea
- a chemicial that comes from the breakdown of protiens and that is removed from the body by the kidneys contains lots of nitrogen because of proteins
- kidney
- a major organ of the excretory system elliminates uera, excess water, and other waste materials
- carbon dioxide
- a waste gas excreted by the lungs
- filters
- what the excretorysystem does to the blood
- dialysis
-
using a machine to filter blood
nly use when kidney's aren't working - bile
- a fluid produced by liver to brak down fats and protiens
- glucose
- a sugar used by the body to make energy normally reabsorded from urine in the nephron becuase it is so useful
- salts
- a waste excreted though sweat
- water
- a liquid that can be excreted or reabvsorbed depending on your diet
- protien
- nutrients that produce wastes when your body brakes them down
- urine
- a watery fluid produced by the kidneys that contains urea and other waste materials
- ureters
- narrow tudes that carry urine from th kidneys to the bladder
- urinary bladder
- a sack like muscle that stores urine until it is ready to be eliminated. it is an organ
- nephron
- one of a million tiny fitration sturctures that are found inside the kidneys. thay remove watses from blood and produce uirne