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ANAPHY > The Urinary System > Flashcards

The Urinary System Flashcards

1
Q

— Two kidneys and two ureters
— Urinary bladder & urethra
— Effector organ for:
1. Regulation of Plasma ion composition
2. Regulation of Body water Volume (BP)
3. Regulation of blood pH (with lung)
4. Production of Hormones
5. Excretion of waste

A

Urinary System

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2
Q

Two kidneys and two ureters

A

Urinary System

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3
Q

Urinary bladder & urethra

A

Urinary System

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4
Q

Urinary System ; Effector organ for

A
  1. Regulation of Plasma ion composition
  2. Regulation of Body water Volume (BP)
  3. Regulation of blood pH (with lung)
  4. Production of Hormones
  5. Excretion of waste
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5
Q

— Divided into cortex –outer portion
— Medulla- inner portion
~ Contain renal pyramids & renal columns
— Urine goes into renal pelvis
~ Edges are made of major & minor calyces n Then out ureter

A

Kidney

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6
Q

Divided into cortex –outer portion

A

Kidney

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7
Q

inner portion

A

Medulla

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8
Q

Contain renal pyramids & renal columns

A

Medulla

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9
Q

________ resting CO goes through kidneys

A

20-25%

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10
Q

— 20-25% resting CO goes through kidneys
— à L. & R. renal arteries then
~ Segmental à interlobar à arcuate à interlobular
— à afferent arterioles
— à glomerulus (capillary network)
— à efferent arterioles
— à peritubular capillaries à veins
— ààrenalvein
— Capillaris Units –nephrons grouped at pyramids

A
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11
Q

nephrons grouped at pyramids

A

Capillaris Units

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12
Q

Is the transfer of a kidney from a donor to a recipient whose kidneys no longer unction.

A

Kidney transplant

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13
Q

— Unit of renal function: corpuscle & tubule
— Corpuscle: forms filtrate
— Glomerulus & Glomerular capsule (cortex)
— Proximal convoluted tubule (cortex) à
— Descending Loop of Henle (into medulla)à
— ascending Loop of Henle (into medulla) à
— Distal convoluted tubule (cortex) à
— Collecting ductà minor calyx

A

Nephron

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14
Q

Unit of renal function:

A

corpuscle & tubule

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15
Q

forms filtrate

A

Corpuscle

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16
Q

— Glomerular filtration-filter plasma
— Tubular reabsorption
* Reabsorb needed compounds & water from
filtrate
— Tubular Secretion
* Secrete some materials into filtrate
— Let rest go out as a solution called urine

A

Basic Operation

17
Q

Reabsorb needed compounds & water from
filtrate

A

Tubular reabsorption

18
Q

Secrete some materials into filtrate

A

Tubular Secretion

19
Q

Let rest go out as a solution called

A

urine

20
Q

filter plasma

A

Glomerular filtration

21
Q

— Two layers of capsule surround glomerulus
— Between is capsular space
— Podocytes support capillary epithelium
— Form filtration membrane
— Permeable to water & solute
— but not most proteins & blood cells

A

Glomerular Filtration

22
Q

Blood pressure for filtration

A

Filtration Pressure

23
Q

Opposed by colloid osmotic pressure and
capsular pressure

A

Filtration Pressure

24
Q

GFR means

A

Glomerular Filtration Rate

25
Q

— GFR 105-125 ml/min
— Determines net reabsorption because it
determines filtrate flow n ANP increases GFR
* Responds to increased blood volume
— Sympathetic stimulation à vasoconstriction
à decreased GFR
— à Urine production

A

Glomerular Filtration Rate

26
Q

Glomerular Filtration Rate

A

105-125 ml/min

27
Q

Responds to increased blood volume

A

ANP increases GFR

28
Q

Tubular Reabsorption

A
29
Q

— Proximal tubule
* ~65% Na+ & H2O
* Normally 100% nutrients
* ~100% HCO3- (depends on blood pH)
— Active transport of solutes
— Osmosis moves water
— Cells distal to proximal tubule fine tune reabsorption under control

A

Tubular Reabsorption

30
Q
  • ~65% Na+ & H2O
  • Normally 100% nutrients
  • ~100% HCO3- (depends on blood pH)
A

Proximal tubule

31
Q

— Takes place all along tubule
— Major substances : H+, K+, ammonia, urea,
creatine, drugs like penicillin
— Helps regulate plasma pH 7.35-7.45
— Diet is acid à urine is typically acidic

A

Tubular Secretion

32
Q

Major substances of Tubular Secretion

A

H+, K+, ammonia, urea,
creatine, drugs like penicillin

33
Q

Helps regulate plasma pH 7.35-7.45

A

Tubular Secretion

34
Q

Urine Route

A

— Collecting ducts to calyces
— Calyces to ureter
— Ureter to bladder
— Bladder to urethra

ANAPHY (17 decks)

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