RENIN, ANGIOTENSIN AND PRESSURE REG

Question 1

long term regulation of blood pressure is handled by? how?

Answer 1

kidneys by increasing the blood volume

Question 2

kidneys filter this to produce urine?

Answer 2

plasma

Question 3

more urine equals?

Answer 3

less plasma

Question 4

more sodium in urine means water follows which means?

Answer 4

less plasma

Question 5

what is the effect of increase arterial pressure on the kidneys? so that means that a decrease in arterial pressure has what effect on urine production by the kidneys?

Answer 5

increase urine output

decrease urine output

Question 6

renal dysfunction is a common cause of _____?

Answer 6

hypertension

Question 7

how do kidneys know to increase or decease urine formation?

Answer 7

renin/angiotensin system which can be slow onset to long lasting

Question 8

renin is released in response to what?

Answer 8

decreased arterial pressure

Question 9

angiotensinogen is produced in what organ?

Answer 9

liver

Question 10

angiotensinogen is produced by what enzyme to this intermediate? name them both

Answer 10

renin

angiotensin I

Question 11

what then converts angiotensin I to angiotensin II?

Answer 11

ACE in the pulmonary and renal endothelial cells

Question 12

what is the overall effect of angiotensin II? name results

Answer 12

overall increases the arterial pressure

vasoconstriction
increases NaCl retention
aldosterone release
broken apart by angiotensinogenases