Renal Starling Forces (Final Exam)

Question 1

What is the glomerular capillary hydrostatic pressure?

Answer 1

(P-GC) due to the high resistance of the efferent arteriole

Question 2

What is the Bowman’s capsule osmotic pressure?

Answer 2

(pi-bc) since proteins do not normally get filtered and their concentration is low in the BC = this force is negligible (= 0mmHg)

Question 3

What are the forces that favor filtration?

Answer 3

Bowman’s capsule osmotic pressure (pi-BC) and glomerulus capillary hydrostatic pressure (P-GC) = ~60mmHg

Question 4

What is the Bowman’s capsule hydrostatic pressure?

Answer 4

(P-BC) due to a large volume of filtrate in closed space

Question 5

What is the glomerular osmotic pressure?

Answer 5

(pi-GC) plasma proteins become more concentrated as water is filtered out

Question 6

What forces oppose filtration?

Answer 6

Bowman’s capsule hydrostatic pressure (P-BC) and glomerulus capillary osmotic pressure (pi-GC) = ~ 44mmHg