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Flashcards in Excretion Deck (20):
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What is excretion?

Excretion is the removal of wastes from the body.

1

Name 3 organs of excretion.

lungs, kidneys and skin

2

What are the waste products of the lungs?

Carbon dioxide and water, the waste products of respiration.

3

What are the waste products of the kidneys?

Urea, salts and water.

4

What are the waste products of the skin?

Salts and water, excreted in sweat.

5

What organ excretes carbon dioxide and water?

The lungs

6

What organ excretes urea, salts and water?

The kidneys

7

What organ excretes salts and water?

The skin

8

What is the function of the renal artery?

To carry blood rich in waste to the kidney.

9

What is the function of the renal vein?

To carry blood with wastes removed away from the kidney.

10

What is the function of the ureter?

To carry urine from the kidneys to the bladder.

11

What is the function of bladder?

To store urine before it is released from the body.

12

What is the function of the urethra?

To carry urine out of the body

13

What is the function of the kidneys?

To remove urea and other wastes from the blood and form urine

14

What big vein/artery carries blood to the kidneys?

The Aorta

15

What big vein/artery carries blood away from the kidneys?

The Vena Cava

16

Name two functions of the kidneys

1. To control the amount of water in the body.
2. To filter and and purify the blood by removing urea and salts.

17

What is urine?

The urea, salts and water removed from the blood by the kidneys

18

Where does the purified blood go?

Back to the heart

19

Where does the urine go?

Through the ureter to the bladder where it is stored until the urethra carries it out of the body