Exam 2 Reabsorption

Question 1

Define reabsorption

Answer 1

Taking back substances that have already been filtered out

Going from the renal tubules to the blood vessels

Question 2

Substances commonly reabsorbed

Answer 2

Glucose amino acids, urea, na, k, cl, hco3 and po4

Question 3

Absorption in the PCT

Answer 3

65% water na and k
100% of the glucose and amino acids
90% of the hco3
50% of the CL reabsorption of these solute stimulates the reabsorption of water by creating an osmotic gradient

Question 4

Reabsorption in the loop of Henle

Answer 4

15% of the water
20% of the na and k
35% of the CL
10% of the hco3

Question 5

Absorption of the early DCT

Answer 5

15% of the filtered water
5% of the na and cl
Cells are stimulated by pth to reabsorb CA

Question 6

Reabsorption of the late DCT

Answer 6

Principal cells reabsorb na so water follows
Intercalated cells reabsorbed k and hco3

Question 7

Purpose of CL being reabsorbed

Answer 7

To make stomach acid

Question 8

Purpose of na and k being reabsorbed

Answer 8

Needed for muscle contraction and nerve conduction

Question 9

Pth

Answer 9

Parathyroid hormone
Takes calcium out of your bones if needed

Question 10

What follows sodium

Answer 10

Water