Mechanisms of Renal Function

Question 1

What factors determine the filtration of a substance?

Answer 1

GFR
Volume of plasma moving into the nephron
Ion concentration

Question 2

Why isn’t there a Bowman’s osmotic pressure?

Answer 2

Protein should not be leaking into the glomerular capillaries

Question 3

What pressure is the primary regulator of of filtration?

Answer 3

Glomerular capillary hydrostatic pressure

Question 4

What is the term used when fluid is passed into the nephron?

Answer 4

Filtrate

Question 5

What portion of the nephron does ADH affect?

Answer 5

Distal tubule and collecting duct

Question 6

What pump creates the concentration gradient for sodium to move into the epithelial cell?

Answer 6

The Na/K atpase pump on the basal side of the cell

Question 7

What type of transport does glucose/amino acids used to get into the cells?

Answer 7

Secondary active transport, hitches a ride with sodium into the peritubular capillary

Question 8

What is the name of the peritubular capillaries in juxtamedullary nephrons?

Answer 8

Vasarecta, theses are important for concentrating urine