10.2 THE HUMAN EXCRETORY SYSTEM

Question 1

What is the description and function of kidney?

Answer 1

Two bean-shaped organs that filter blood and excrete excess water, salts, and urea

Question 2

What is the description and function of ureter?

Answer 2

Tube connecting the kidney to the bladder that transport urine from the kidney to the bladder

Question 3

What is the description and function of bladder?

Answer 3

Muscular organ that stores urine as it is excreted by the kidney

Question 4

What is the description and function of urethra?

Answer 4

Tube that connects the bladder to the exterior where urine is released

Question 5

What is the formation and excretion of urine by the kidneys?

Answer 5

1. Filtration of blood where water, glucose, salts, and urea are filtered out from the blood
2. Blood cells, platelets, and proteins are too large, so they cannot be filtered out
3. Reabsorption of useful substances like most of the water, all glucose and some salts are reabsorbed back into the blood