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Physiology > Urinary Physiology > Flashcards

Urinary Physiology Flashcards

1
Q

The PCT is confined where in the kidney?

A

Cortex

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2
Q

PCT functions in (reabsorption/secretion/both)

A

both

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3
Q

DCT functions in (reabsorption/secretion/both)

A

More in secretion than reabsorption

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4
Q

What is the average adult male rate of filtrate formation?

A

125ml/min

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5
Q

What is the mean arterial pressure?

A

80-180mm Hg

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6
Q

When filtrate enters PCT, it is (hyper,iso,hypo) -smotic to plasma and interstitial fluid

A

Isosmotic

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7
Q

Filtrate reaches its highest concentration where?

A

At the bend of the Loop of Henle

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8
Q

What section of the nephron is water impermeable?

A

Thick portion of ascending loop

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9
Q

What section of the nephron is water reabsorbed passively?

A

Thin descending loop of Henle

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10
Q

Urine is (hyper,iso,hypo) tonic in the thin descending loop of Henle

A

hypertonic

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11
Q

Urine is (hyper,iso,hypo) tonic in the early DCT

A

hypotonic

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12
Q

What does parathyroid hormone do to the kidney?

A
  1. Decrease phosphate reabsorption at PCT

2. Increase calcium reabsorption at DCT

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13
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Secretes just H+ and K+

A

Collecting tubules and DCT

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14
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Actively reabsorbs Na+ and Cl-

A

DCT

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15
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Reabsorbs H2O only

A

Descending Loop

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16
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Concentrating segment

A

Descending Loop

17
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Active reabsorption of Na+, K+, and Cl-

A

Ascending Loop

18
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Indirectly induces Mg2+ and Ca2+ reabsorption

A

Ascending Loop

19
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Secretes NH3, Uric acid, creatinine, and organic acid

A

PCT

20
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Reabsorbs all glucose and AA

A

PCT

21
Q 
PCT
Descending Loop
Ascending Loop
DCT
Collecting tubules

Diluting segment

A

DCT

22
Q

What does ADH do to the kidneys?

A

Increase H2O permeability

23
Q

What converts angiotensin I to II?

A

ACE

24
Q

ACE inactivates what?

A

Bradykinin

25
Q

What’s found in the urine?

A
  1. Urea
  2. Creatinine
  3. Drugs
  4. Water
  5. Salt
  6. HCO3
  7. K+
26
Q

What should NOT be in the urine?

A
  1. Glucose
  2. AA
  3. Large proteins

Physiology (24 decks)

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