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Block 3: Physiology > Lecture 4 > Flashcards

Lecture 4 Flashcards

1
Q

(Regulation of Na+ Excretion)
Decreases in GFR decrease?

A

Na+ Excretion

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2
Q

(Regulation of Na+ Excretion)
Increases in GFR increase?

A

Na+ Excretion

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3
Q

(Regulation of Na+ Excretion)
Changes in Filtration Pressure with decreased?

A

Blood Pressure

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4
Q

(Regulation of Na+ Excretion)
Filter more = ?

A

Excrete more

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5
Q

Renin-Angiotensin-Aldosterone System?

A

-Aldosterone secreted from Adrenal Gland
-Aldosterone primarily to increase Na+ absorption in kidney

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6
Q

Aldosterone increases?

A

Na+ Reabsorption

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7
Q

Opening probability is increased by?

A

Aldosterone and abundance of protein (regulated by aldosterone)

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8
Q

Aldosterone primarily increases?

A

Activity of sodium pump

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9
Q

Angiotensin II Increases?

A

Na+ Reabsorption
-Increases Aldosterone
-Decreases Kf (SA)
-Increases Proximal Reabsorption
-Increases Filtration Fraction (FF)

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10
Q

Angiotensin II constricts?

A

Both afferent and efferent arterioles but has more effect on efferent arteriole

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11
Q

(Natriuretic Peptides Family)
ANP?

A

-Atria
-Other tissues

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12
Q

(Natriuretic Peptides Family)
BNP?

A

-Brain
-Atria
-Ventricles

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13
Q

(Natriuretic Peptides Family)
CNP?

A

-CNS
-Vasculature

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14
Q

Atrial Natriuretic Peptide (Factor) ANP (ANF) decreases?

A

Na+ Reabsorption

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15
Q

ANP to cGMP can?

A

Inhibit Na+ absorption

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16
Q

Decreased Protein Osmotic Pressure increases?

A

Na+ Excretion (glomerulus)

17
Q

Sympathetic Increase?

A

Na+ Reabsorption
-Arterioles
-JG Cells
-Kf (SA)
-Tubule

18
Q

Sympathetics (NE or Epi) increase?

A

Active Na/K APTase and thus increase Na reabsorption. Angiotensin II has a similar effect but different receptor

19
Q

Increase Blood Flow to Cortex results in?

A

Increased Na+ excretion

20
Q

Juxtamedullary Nephron is?

A

Salt Sparing
(more efficient in Na+ absorption)

21
Q

Cortical Nephron is?

A

Salt Wasting

22
Q

Pressure natriuresis/diuresis is an increase of?

A

Na+/water excretion caused by an increase in arterial pressure in the absence of a change in renal blood flow and glomerular filtration rate

Block 3: Physiology (7 decks)

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