Lecture44: Regulafion Of Water And Electrolyte Transport In Renal Tubules

Question 1

The PCT is for?

Answer 1

Sodium reabsorption

Question 2

How does the sodium reabsorbs at the PCT’s brush border?

Answer 2

Via facilitated diffusion

Question 3

The complete reabsorption of glucose and amino acids occurs at?

Answer 3

PCT

Question 4

How are the Glucose and amino acids reabsorbed at the PCT?

Answer 4

They are actively transported through the brush border via the glucose transporters

Question 5

What is actively secreted from the PCT?

Answer 5

Hydrogen

Question 6

Is the Thin descending limb of Henle impermeable to solutes?

Answer 6

Yes

Question 7

What does the Thin descending limb only absorb?

Answer 7

Water via osmosis

Question 8

What is the osmolality at the end of the descending limb?

Answer 8

Hyperosmotic

Question 9

The Thin ascending limb then becomes permeable to?

Answer 9

Sodium and chloride

Question 10

The Thick ascending limb absorbs it’s sodium how?

Answer 10

Facilitated diffusion at apical border, and actively at basolateral border

Question 11

What is the diluting segment of the nephron?

Answer 11

Thick ascending Limb of henle, and early distal tubule

Question 12

When there is a decrease in extra cellular fluid sodium, what do the receptors do?

Answer 12

They deploy the Renin-angiotensin-aldosterone system