Endocrine Functions

Question 1

Renin

Answer 1

Secreted by the juxtaglomerular apparatus in the kidneys
Converts angiotensinogen to angiotensin I
Angiotensin I converts to angiotensin II

Question 2

Angiotensin II

Answer 2

Controls renal bloodflow

1) Constricts renal arterioles
2) Secretion of aldosterone helps retain sodium

Question 3

Aldosterone

Answer 3

Promotes reabsorption of Sodium (with water) from filtrate, and secretion of Potassium from blood into filtrate

Question 4

Antidiuretic hormone

Answer 4

Promotes water reabsorption from filtrate, in the distal convoluted tubule and collecting duct

Question 5

Parathyroid hormone

Answer 5

Promotes Calcium reabsorption and excretion of phosphate from filtrate