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Physiology Renal > renal 2 > Flashcards

renal 2 Flashcards

1
Q

tf filtration is an active process

A

F active

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2
Q

which of the following has a low reabsorption rate?

glucose

h20

Na

urea

A

urea

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3
Q

reabsorption changes in — with—

A

parrallel ; filtration

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4
Q

describe the process of urea reabs

A

h2o reabs

conc of urea inc in tubules

then moves down conc gradient to cap

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5
Q

H20 impremeable in

thick descending limb

prox tubule

ascending limb

A

ascending limb

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6
Q

which 2 structures are needed to absorb salt in prx tubule

A

microvilli and mitochondria

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7
Q

required to absorb Na in tubules

A

Na/ k atpase

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8
Q

thick descending limb

has lot of microvilli

dissolves salt

h20 imperm.

dissolves h20 but no NA

A

dissolves h20 but no NA

doesnt have much microvili or mit.

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9
Q

tf na/ k atpase are on the luminal side of tubes

A

F on basolat. membrane

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10
Q

tf Na exchange with H exists in the prox tubule (to get NA into the cell)

A

T

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11
Q

early prox tubule

NA contransport with solutes

Na contransport withK and Cl

has a Na channel to get Na into the tubule cell

A

NA contransport with solutes

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12
Q

contains cotransport of Na and Cl to get Na into tubules cell

Prox tubule

Distal tubule

TAL

A

Distal tubule

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13
Q

which part of the renal tubule reab 67% of NA

A

prox tubule

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14
Q

tf all glucose get reab at prox tubule

A

T

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15
Q

Glucose tranport

SGLT1/2 on basolat. membrane

Na glucose cotransport on lumenal membrane

Na Glucose exchanger on luminal membane

invole GLUT 1 and 2 to get glucose into cap side

more than 1

A

more than 1

invole GLUT 1 and 2 to get glucose into cap side

Na glucose cotransport on lumenal membrane

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16
Q

filtered glucose is a function of

A

plasma glucose*GFR

17
Q

Tm limited

Na

Glucose

h20

A

glucos

transporter get saturated and cause excretion of Glucose because glucose cant get into cap (reabs)

18
Q

2/3 get reabs in prox tubule

h20

na

glucoese

A

h2o and Na

19
Q

h20 reabs is — in the prox tubule

A

isosmotic(follows salt)

20
Q

high osmolarity in medulla causes H2O reabs in

A

descending limb

21
Q
A
22
Q

diabetes mellitus

A

nill reabs of glucose

no gradient for h2o

h20 in tube and get excreted

23
Q

aqp1

exists in?

A

prox tubule and thick descending limb

(on luminal membrane and basolateral mem)

24
Q

ADH triggers — from vesicles to fuse on luminal membrane

AQP1

AQP2

AQP3

AQP4

A

AQP2

25
Q

contain proteins

A

Glom cap

26
Q

peritub cap

A

larger oncotic pressure than hydrostatic pressure of tubes

27
Q

tub. secretion important for

A

H and K

28
Q

H and K

A

secreted in tubules

29
Q

na and h2o

A

not secreted

30
Q
A

Physiology Renal (7 decks)

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