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A&P 2024 > Renal > Flashcards

Renal Flashcards

1
Q

Normal filtration fraction

A

19%

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2
Q

Normal Renal plasma flow

A

660mL/min

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3
Q

Normal GFR

A

125mL/min

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4
Q

Normal renal blood flow (mL/min and %CO)?

A

1100mL/min
22% CO

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5
Q

Normal oncotic pressure in afferent arteriole

A

28mmHg

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6
Q

Normal oncotic pressure in glomerular capillaries

A

32mmHg

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7
Q

Normal oncotic pressure in efferent arteriole

A

36mmHg

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8
Q

Normal hydrostatic pressure in afferent arteriole

A

60mmHg

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9
Q

Normal hydrostatic pressure in renal tubule

A

18mmHg

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10
Q

auto-regulation of GFR is primarily dictated by?

A

Resistance of efferent arteriole

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11
Q

Constriction of efferent arteriole causes ________ of GFR

A

increase upstream pressure = increase GFR

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12
Q

Dilation of efferent arteriole causes _______ of GFR

A

decreased upstream pressure = decreased GFR

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13
Q

Normal oncotic pressure in peritubular capillaries

A

32mmHG

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14
Q

Normal blood pressure/hydrostatic pressure in peritubular capillaries

A

13mmHg

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15
Q

Normal BP in efferent arteriole

A

18mmHg

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16
Q

Normal Net filtration pressure

A

10mmHg

17
Q

Normal Net reabsorption pressure

A

10mmHg

18
Q

Filtration rate calculation

A

Kf x NFP

19
Q

Kf

A

Filtration coefficient = 12.5 mL/min/mmHg

20
Q

% of plasma filtered

A

~19%, 1/5th, 125mL/min

21
Q

Secretion occurs in the ___________

A

Peritubular capillaries

22
Q

filtration occurs in the ____________

A

glomerular capillaries

23
Q

auto-regulation of renal blood flow is primarily dictated by

A

resistance of afferent arterioles

24
Q

plasma oncotic pressure favors _________ (filtration/reabsorption)

A

reabsorption

25
Q

Normal renal interstitial pressure (Pisf)

A

15mmHg ????? clarify

26
Q

Normal renal oncotic pressure (π isf)

A

6mmHg ??????? clarify

27
Q

to INCREASE renal blood flow, the ________ arteriole will _________, causing a _________ in glomerular pressure and ______ in GFR

A

afferent, dilate, increase, increase

28
Q

to DECREASE renal blood flow, the ________ arteriole will _________, causing a _________ in glomerular pressure and ______ in GFR

A

afferent, constrict, decrease, decrease

29
Q

to INCREASE glomerular filtration rate, the ________ arteriole will _________, causing a _________ in glomerular pressure and ______ in GFR

A

efferent, constrict, increase, increase

A&P 2024 (19 decks)

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