Name: ____________________________
Date: _________
Period: _______
Excretory System
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Across
Down
6. Carries oxygenated blood containing high
1. A hollow, muscular organ that stores urine
levels of urea to the kidneys for filtration.
2. Collection of organs that remove waste from the
8. tube that carries urine from the bladder and
blood; organs include kidneys, ureters, urethra,
releases it from the body.
urinary bladder
9. Chemical messengers in the body that control 3. The principal nitrogen containing waste
the balance of fluids
excreted in urine; derived from amino acid
10. Each of a pair of organs in the abdominal
breakdown
cavity of mammals, birds, and reptiles, excreting 4. Proteins building blocks.
urine.
5. One of two narrow tubes that take urine from
11. A watery, typically yellowish fluid stored in the the kidneys to the urinary bladder.
bladder and discharged through the urethra. It is 7. Each of the functional units in the kidney,
one of the body's chief means of eliminating
consisting of a glomerulus and its associated
excess water and salt and also contains nitrogen tubule, through which the glomerular filtrate
compounds such as urea and other waste
passes before emerging as urine.
substances removed from the blood by the
kidneys.
12. Carries deoxygenated blood which has had
urea removed away from the kidneys.