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DMD5249 Disease and Wellness 4 > Urogenital System Development > Flashcards

Urogenital System Development Flashcards

1
Q

What are the 3 regions of the developing urinary system and what order do they arise?

A
  1. Pronephros
  2. Mesonephros
  3. Metanephros
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2
Q

What important structures are in the mesonephros? What do they become?

A

Mesonephric duct. Becomes Wolffian duct in males, regresses in females.

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3
Q

What structure is important in the Metanephros? What do they become?

A
  1. Uteric bud: Becomes collecting duct.

2. Metanephric blastema: Cells surrounding metanephric duct.

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4
Q

What happens during horseshoe kidney? Duplex ureter and kidney?

A

Horseshoe= Fusion of metanephric blastema

Duplex=Extra ureter or kidney.

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5
Q

What is oligohydromnios?

A

Too little amniotic fluid because kidneys are absent.

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6
Q

What is Urachal Fistula?

A

Persisent opening between the urinary bladder and umbilical cord.

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7
Q

What does the Paramesonehpric duct form?

A

Mullerian duct in females, which regresses in Males.

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8
Q

What are the different parts of the indifferent external genitalia?

A
  1. Genital eminence
  2. Genital Tubercle
  3. Genital Folds
  4. Urogenital sinus
  5. Genital swellings.
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9
Q

What do each of the external genital parts become in males?

A
  1. Tubercle=Penis
  2. Swellings=Scrotum
  3. Folds=Fuse/close urogenital sinus.
  4. Canalization of epithelial seam=urethra.
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10
Q

What do each of the external genital parts become in females?

A
  1. Tubercle=Clitoris
  2. Folds=Labia minora
  3. Swellings= Labia majora
  4. Urogenital sinus=Urethra
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11
Q

What are the 3 functions of the urinary system?

A
  1. Excretion
  2. Elimination
  3. Homeostatic regulation
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12
Q

What are some of the homeostatic functions of urinary system?

A
  1. Regulates blood volume/pressure.
  2. Regulates plasma ion concentrations.
  3. Helps stabilize blood pH
  4. Conserves valuable nutrients.
  5. Assists liver in detoxifying
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13
Q

What are some characteristics of the kidney?

A
  • Left is superior to right.
  • Superior surface capped by adrenal glands.
  • Receives about 20-25% of cardiac output.
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14
Q

What are the 3 layers of CT of the kidney?

A
  1. Fibrous capsule=layer of collegen fibers
  2. Perinephric fat capsule
  3. Renal fascia
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15
Q

What kind of epithelium does the renal corpuscle have? Convoluted tubules?

A

Corpuscle=Simple sqaumous

Tubules=Simple cuboidal.

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16
Q

What are the differences between the proximal convoluted tubule and the distal?

A

PCT=Long, Brush border

DCT=Shorter, no brush border

17
Q

what kind of epithelium is in the ureter?

A

Transitional!

DMD5249 Disease and Wellness 4 (8 decks)

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