Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

AP 1 numbers :) > Kidney numbers pt 2 > Flashcards

Kidney numbers pt 2 Flashcards

(69 cards)

Start Studying
1
Q

Plasma oncotic pressure in middle of glomerular capillaries:

A

32 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Plasma oncotic pressure in afferent arteriole:

A

28 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Plasma oncotic pressure in beginning of glomerular capillaries:

A

28 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Plasma oncotic pressure at the end of glomerular capillaries:

A

36 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Hydrostatic pressure of the tubule:

A

18 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Protein osmotic pressure in the early part of the tubule:

A

0 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Net filtration pressure of kidney:

A

10 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Filtration rate of kidney:

A

125 mL/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

KF (filtration coefficient) in kidney:

A

12.5 mL/min/mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How to solve for filtration coefficient?

A

Filtration rate / NFP

In kidney:
125 mL/min (filtration rate) divided by 10 mmHg (NFP) = 12.5 mL / min / mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How did we get NFP of the kidney?

A

Take the pressure that promotes filtration - pressures that oppose filtration

60 mmHg (BP in glomerular capillaries) - 32 mmHg (osmotic pressure of glomerular capillaries) - 18 mmHg (Hydrostatic pressure of the tubule) = 10 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Filtration rate equation

A

Filtration rate = NFP x KF

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Relaxation of the efferent arteriole = ____ upstream pressure, ___ filtration

A

reduced, less

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Constriction of the efferent arteriole = ___ upstream pressure, ___ filtration

A

higher, more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

BP at the end of the efferent arteriole

A

18 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Difference in bp between the glomerular capillaries and end of efferent arteriole

A

42 mmHg decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What % of stuff that is filtered is reabsorbed?

A

99%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What % of stuff that is filtered is excreted?

A

1-2%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Renal artery blood pressure

A

100 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Blood pressure of glomerular capillaries

A

60 mmHg (2x systemic caps)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Normal GFR

A

125 mL/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Afferent arteriole plasma oncotic pressure

A

28 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Oncotic pressure in the beginning of the glomerular capillaries

A

28 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Oncotic pressure in the end of the glomerular capillaries

A

36 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Oncotic pressure in the middle of the glomerular capillaries
32 mmHg
25
Hydrostatic pressure in tubule or bowman's capsule
18 mmHg
26
Oncotic pressure of tubule or bowman's capsule
0 mmHg
27
NFP of glomerular capillaries
10 mmHg
28
Filtration coefficient of glomerular capillaries
12.5 ml/min/mmHg
29
BP at end of efferent arteriole
18 mmHg
30
Change in pressure from glomerular capillaries to end of efferent arteriole
42 mmHg 60-18 = 42
31
Change in pressure from renal artery to glomerular capillaries
40 mmHg 100-60=40
32
Peritubular capillaries plasma oncotic pressure
32 mmHg
33
Blood pressure of peritubular capillaries
13 mmHg
34
Renal interstitial oncotic pressure
15 mmHg
35
Renal interstitial physical fluid pressure or hydrostatic pressure
6 mmHg
36
Peritubular capillaries NFP
-10 mmHg
37
Peritubular capillaries net reabsorption pressure
+10 mmHg
38
Filtration rate equation
Filtration rate = NFP x Filtration coefficient
39
A little over ___% of the blood that moves through the kidney is filtered
10%
40
___ of the plasma that moves through the kidneys gets filtered
1/5
41
Filtration fraction of kidneys %?
20% GFR (125) divided by renal plasma flow (660 mL/min)
42
Renal plasma flow in ml/min
660 ml/min
43
Renal blood flow in ml/min
1100 ml/min
44
Normal HCT
0.40
45
How do we get our plasma flow or volume for the kidneys?
Take 0.60 x 1100 (RBF) = 660
46
Kidneys will autoregulate between these blood pressures:
50-150 mmHg
47
Normal urine output
1 ml/min
48
How many nephrons are in each kidney at birth?
1 million
49
How many nephrons do we have at birth?
2 million (1 mil each kidney)
50
This percentage of nephrons are cortical nephrons
90-95%
51
This percentage of nephrons are deep medullary nephrons
5-10%
52
This percentage of peritubular capillaries are in the outer medulla
90-95%
53
This percentage of peritubular capillaries are in the inner medulla
5-10%
54
Where does the pudendal nerve come from
S2, S3, S4
55
What fraction of almost everything is reabsorbed at the proximal tubule?
2/3
56
The kidney can remove about ___% of PAH as blood passes through the kidney
90%
57
The brush border of the proximal tubule increases the surface area of its cells by ____
20 fold
58
Membrane potential of kidney cells
-70 mV
59
Proximal tubule tubular lumen charge
-3 mV
60
The amount of protein filtered each day in a normal healthy person
1.8 grams
61
How many grams of the filtered normal protein will be reabsorbed by the proximal tubule?
1.7 grams
62
How much protein shows up in the urine in a normal healthy adult per day?
100 mg or 0.1 grams
63
Pinocytosis only exists in this part of the kidney
proximal tubule
64
We reabsorb ___% of the water filtered in the proximal tubule and ___% in the thin descending limb
65%, 20% (so 85% reabsorbed by the time we are at the end of the loop of henle)
65
Tubular lumen membrane potential in thick loop of henle .WHy does it matter?
+8 mV Pushes divalent cations through the paracellular route
66
Lizards can get their interstitial up to ___
3000 mOsm
67
What is the most concentrated our interstitium can be?
1200 mOsm
68

AP 1 numbers :) (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions