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Flashcards in Renal system Deck (103)
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1

what hormone controls Na+?

 

aldosterone

 

2

what hormone controls amount of water?

ADH

3

the kidneys have a major influence on what hemodynamic

blood pressure

 

4

what is the functional unit if the kidney

Nephron

5

metabolic end-prodeucts are excreted how?

filtration

(they are filtered into, and then trapped within, the renal tubule)

6

Renal Functions:

what are the main electrolytes the kidney balances?(5)

Na+

K+

Ca++

Mg++

Cl-

7

Renal Functions:

what 2 things does it control for acid base balance?

H+ 

HCO3-

8

Renal Functions: regulation of osmolality

________ are 90% of total osmolality of the ECF

sodium salts

9

Renal Functions: regulation of osmolality

when we talk about regulating osmolality, we are talking about regulating what?

Sodium concentration

(b/c sodium salts represent 90% of total osmolality)

10

Renal Functions: regulation of osmolality

what is normal osmolality? give normal and range!

normal 300 mOsm/kg

range 270-310 mOsm/kg

11

Renal Functions: 

what are 6 non-volatile end products of metobolism excreted

HP04 --

SO4 --

urea

Creatinine

uric acid

lactic acid

12

Maintenance of ECF volume is acheived by controlling what 2 things

 

salt NaCl

and 

water excretion

13

the kidneys are considered endocrine why?

they produce hormones

14

What 3 hormones to the kidneys produces

Erythropoietin

Renin

Vitamin D

15

Endorince functions:

what does erythropoietin do?

acts on bone marrow and stimulates RBC production

16

Endorince functions:

whay is a pt with chronic renal failue anemic

decreased production of erythropoietin

17

Endorince functions:

what is the purpose of renin

enzyme that participates in blood pressure regulation, potassium ecretion, and sodium reabsorption

18

Endorince functions:

function of vitamin D

the kidney w/ help of the liver convert Vit D into its active form Vit D3

19

Endorince functions:

why does a chronic renal pt become hypocalcemic

b/c absorption from the intestine is impaired when there is a vit d if difficient

20

Renal Blood flow:

the kidney receives what % of CO

25%

1.25 L/min

21

how do the kidneys autoregulate

they have 2 sets of capillaries, the dual function allows for control of flow and pressure

22

Label

  1. Efferent Arteriole
  2. proximal convoluted tubule
  3. Loop of henle
  4. Afferent Arteriole
  5. Distsal convoluted tubule
  6. Collecting duct

23

Point or explain where each diuretic works

CAI

Loop

Thiazides

K+ sparing

CAI- proximal tubule

Loop- thick Ascending loop oh henle

Thiazide- distal tubule

K-sparing- collecting duct

24

point to the bowmen's capsul

 

25

point to the glomerulus

 

26

three functions of the kidney

filtration

reabsorption

secretion

27

what is the function of the proximal tubule

reabsorbs the bulk of the filtered fluid and it's dissovled contents

28

what is the function of the Loop of Henle

establishes and maintains an osmotic gradient in the medulla. 

29

what is the function of the distal tubule and collecting ducts?

make final adjustments on urine pH, osmolality, and ionic composition

30

the LOH is a COUNTERCURRENT MULTIPLIER which does what

creats the osmotic gradient

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