The Excretory System Flashcards
What waste products are produced when the body uses food? (Name 4)
1-energy
2-carbon dioxide
3-water
4-heat
When you exhale from your lungs, what 2 things are given off?
1-carbon dioxide
2-water
What is the largest organ of the body?
The skin.
What’s the function of the kidneys?
It’s to excrete or remove waste from the body.
How are urea and salts released from the body? (Name 2 ways)
1-Through the skin when you sweat
2-the main organs of excretion in the body
Where are the kidneys located?
At the back of the body, above the hips.
How is urine made?
By the nephrons in the kidneys.
What is urine made up of? (name 2 things)
1-Water
2-Wastes
Each kidney contains million of tony tubes called _______, which are wrapped by what?
Nephrons are wrapped by capillaries.
What do nephrons do? (name 2 things)
1-They filter and cleanse the blood
2-balance the supply of water and salt in the body
What 4 things make up nephrons?
1-water
2-urea
3-salt
4-wastes
The urine leaves through a tube called the __________.
Ureter.
The urine collects where after leaving the kidneys?
In the bladder.
After the urine is collected in the bladder, it goes through another tube where it exits the body, which is called what?
The urethra.
How does the urinary system remove waste? (Name 3 things)
1-sweating
2-breathing
3-urinating
What is the excretory system responsible for? (Name 4 things)
1-the filtration of the blood
2-the elimination of urea
3-the elimination of any other nitrogenous waste
4-the elimination of extra matter such as salts and water
How many kidneys do we have?
2
Where does blood enter the kidney?
Through the renal artery.
What does the renal artery remove from the blood? (Name 2 things)
1-Water
2-Waste
Where are nephrons specifically in the kidneys?
In the cortex/medulla of the kidneys.
What can happen if you don’t pee, breathe, sweat, etc, enough in a day?
It can build up salts crystals in the kidneys,(kidney stones).
