Freshwater Kidney

Question 1

What is the loop of henle?

Answer 1

• collecting tubule that concentrates filtrate (fish lack and cannot concentrate urine)

Question 2

What fish is the “bilge pump” found in?

Answer 2

• lamprey and bony fish

Question 3

What kind of kidney do freshwater fish have?

Answer 3

• glomerular (high glomerular filtration + urinary flow rate)

Question 4

The freshwater kidney has high rate of ___ and ___ reabsorption. where?

Answer 4

• Na and Cl
• proximal + distal tubules

Question 5

Where is there little reabsorption in the freshwater kidney?

Answer 5

• at underdeveloped/absent intermediate segment ((is) and collecting tubule)