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Excretory System
| Question | Answer |
|---|---|
| What is the main function of the excretory system? | filter out cellular wastes, toxins, and excess water |
| What is excretion? | the process of removing wastes |
| What are the MAIN organs of the excretory system? | kidneys |
| What organs make up the excretory system? | kidneys, ureters, the bladder, and the urethra |
| What do the kidneys do? | remove waste by filtering the blood, the wastes are eliminated from the body as urine |
| What is urea? | the nitrogen waste made when the body digests protein (meat) |
| What is urine? | liquid waste made up of urea, salts, and water |
| What are ureters? | the tubes that connect each kidney to the bladder; there are 2 of them, one from each kidney |
| What is the bladder? | a sac-like muscular organ which stores urine until it is released from the body |
| What is the urethra? | the tube through which urine passes before it is removed from the body (carries urine out of the body) |