Physiology Review Slides Lec. 15

Question 1

Hoe many nephrons are in a single Kidney?

Answer 1

800k - 1 million nephrons

Question 2

What happens to the EC volume of the cell when there is a Net GAIN of fluid by the body?

Answer 2

The Volume will ALWAYS Enlarge

Question 3

Juxtamedullary nephrons

Answer 3

• Have glomeruli DEEP in the Cortex or Near MEDULLA
• Have LONG loops of Henle
• Have long EFFERENT Arterioles associated w/ Peritubular capillaries
  (VASA Recta)

Question 4

Another name for Vasa Rects is ______.

Answer 4

Peritubular capillaries

Question 5

Each Collecting Duct receives urine from _____ nephrons.

Answer 5

4000

Question 6

Osmolar Gap

Answer 6

The Diff b/w the MEASURED OsmolaLity and the ESTIMATED OsmolaLity

• Normal less that or equal to 15

Question 7

What % the total nephrons are Juxtamedullary nephrons?

Answer 7

20 - 30%

Question 8

How many Collecting ducts are in each Kidney?

Answer 8

~ 250

Question 9

T/F: The nephrons in the body decrease by 10% every year after the age of 40

Answer 9

True

Question 10

How much body fluid is Interstitial fluid?

Answer 10

~11 liters

Question 11

Cortical Nephrons

Answer 11

• Have glomeruli locates in the OUTER Cortex

- Have SHORT loops of Henle

Question 12

How much body fluid is Plasma fluid?

Answer 12

~ 3 liters

Question 13

Kidney receives about what percentage of Total Cardiac Output?

Answer 13

• 22%

- 1100ml/min

Question 14

BMP

Answer 14

Basic Metabolic Profile

Question 15

What does LOW Hydrostatic Pressure in Peritubular capillaries do?

Answer 15

Permits Rapid fluid REABSORPTION

Question 16

What does HIGH Hydrostatic Pressure in Glomerular capillaries do?

Answer 16

Causes Rapid FILTRATION

Question 17

Common things to ELVATE the Osmolar gap?

Answer 17

1. Acetone
2. Methanol
3. Ethanol
4. Mannitol
5. Ethylene glycol

“ A MEME”

Question 18

How much of your bodily fluids is INTRACELLULAR?

Answer 18

• 40%

- 28L

Question 19

What helps to regulate hydrostatic pressure in BOTH Glomerular and Peritubular capillaries

Answer 19

EFFERENT Arterioles