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Physiology > B7 L1 > Flashcards

B7 L1 Flashcards

1
Q

Glomerular Capillaries

A

filters plasma into nephron
makes tubular fluid
fed by afferent, drained by efferent arteriole

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2
Q

Peritubular Capillaries

A

fed by efferent

needed for reabsorption and secretion

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3
Q

Filtration

A

filter plasma to make tubular fluid (urine)

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4
Q

Filtered Load

A

amount filtered in capillaries

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5
Q

Excretion

A

removed in urine

what is left in nephron after filtration

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6
Q

Reabsorption

A

move solute/ water back into blood

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7
Q

Secretion

A

move solute from blood to tubular fluid

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8
Q

Bowman’s Capsule

A

entrance to nephron

surrounds glomerulus

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9
Q

Proximal Convoluted Tubule

A

reabsorbs majority of ions and water, and all glucose and AA

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10
Q

Loop of Henle

A

reabsorption and dilution of urine

makes gradient to alter urine conc

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11
Q

Descending Limb of Loop of Henle

A

water reabsorption

no solute mvmt

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12
Q

Ascending Limb of Loop of Henle

A

Solute reabsorption

no water mvmt

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13
Q

Macula Densa

A

senses tubular fluid flow and renal blood flow

regulates afferent/ efferent arteriole size

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14
Q

Distal Convoluted Tubule

A

reabsorption and secretion of ions
fine tuning of urine solute amounts
pH balance

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15
Q

Thiazide

A

diuretic affecting DCT

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16
Q

Carbonic Anhydrase Inhibitor

A

diuretic affecting PCT

17
Q

Furosimide

A

diuretic affecting Loop of Henle

18
Q

Collecting Ducts

A

control water loss/ reabsorption and urine osmolarity

site of Anti-diuretic hormone function

19
Q

Potassium Sparing Diuretics

A

affect Collecting Ducts

20
Q

Renal Input

A

Renal Artery

21
Q

Renal Output

A

Renal Vein and Ureter

22
Q

Clearance

A

how much plasma has solute removed in 1 min

determine amount of plasma filtered and amount of blood delivered to kidney

23
Q

Clearance Formula

A

Xu * V / Xa

24
Q

Clearance of Inulin

A

Glomerular Filtration Rate
amount of plasma filtered
inulin is only filtered

25
Q

Clearance of PAH

A

Renal Plasma Flow
100% filtered and 100% secreted
how much plasma moved through kidney

26
Q

Filtration Fraction

A

amount of plasma filtered by kidney

=GFR/RPF

27
Q

Free Water Clearance

A

how much water is excreted

vol of all solutes removed

28
Q

High Plasma Osmolarity

A

excrete as little water as possible

dilute solutes

29
Q

Low Plasma Osmolarity

A

excrete lots of dilute water

30
Q

Free Water Clearance Formula

A

Cosm= (Uosm * V) / Posm

31
Q

Positive Free Water Clearance

A

more water cleared than solutes

because body overhydrated, ECF osmol low

32
Q

Negative Free Water Clearance

A

more solute cleared than water

because body dehydrated, ECF osmol high

33
Q

Uosm&raquo_space;> Posm

A

Negative Cwater

need to keep water in body

34
Q

Uosm «< Posm

A

Positive Cwater

need to lose water

Physiology (17 decks)

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