kidney structure (+ urinary system)

Question 1

what are the 3 main functions of the kidneys?

Answer 1

1. filtration
2. reabsorption (returns essential components)
3. secretion (removal of toxic substances)

Question 2

what is the function of the cortex?

Answer 2

contains nephrons which provide kidney a large surface area to filter the blood

Question 3

what is the function of the renal artery?

Answer 3

carries blood containing nitrogenous wastes to the kidney

Question 4

what is the function of the medulla?

Answer 4

contains collecting tubules which collect into the ureter

Question 5

what is the function of the renal pelvis?

Answer 5

collects urine

Question 6

what is the function of the renal vein?

Answer 6

blood vessel that carries blood purified of nitrogenous waste from kidney to general circulation

Question 7

what is the function of the ureter?

Answer 7

carries urine out of the kidney into the bladder

Question 8

what is the functional unit of the kidney?

Answer 8

the nephron (there are millions of these microscopic units in a kidney)

Question 9

what is the function of the bladder?

Answer 9

stores urine and periodically releases urine by a sphincter muscle

Question 10

what is the function of the urethra?

Answer 10

a tube which carries urine out of the body