Renal Embryology

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Questions and Answers

The kidneys/urogenital system develops from

  • Intermediate mesoderm (correct)
  • Endoderm
  • Paraxial Mesoderm
  • Parietal Mesoderm

The suprarenal glands develop from

  • Intermediate mesoderm
  • Endoderm
  • Paraxial Mesoderm (correct)
  • Parietal Mesoderm

What is the first stage of kidney development?

  • Metanephros
  • Uronephros
  • Pronephros (correct)
  • Mesonephros

When does the pronephros develop and where does it develop?

<p>Week 4; cervical region (A)</p> Signup and view all the answers

What is the second stage of kidney development?

<p>Mesonephros (A)</p> Signup and view all the answers

When and where does the mesonephros develop?

<p>Weeks 4-10: mid thorax-upper lumbar (D)</p> Signup and view all the answers

What is the last stage of kidney development that will become our kidneys?

<p>Metanephros (A)</p> Signup and view all the answers

T or F: Development of all three kidney systems and suprarenal glands is extra peritoneal

<p>True (A)</p> Signup and view all the answers

The mesonephric (wolffian) duct gives rise to...

<p>ureteric bud of the metanephric kidney (A)</p> Signup and view all the answers

The nephron, bowman's capsule, DCT, PCT, and Loop of Henle are derived from

<p>Metanephric mesoderm via renal vesicles (C)</p> Signup and view all the answers

The ureteric bud forms what?

<p>Renal pelvis, major + minor calyces, collecting duct (B)</p> Signup and view all the answers

Where does the urorectal septum come from and what does it separate?

<p>Mesoderm, separates the cloaca into anterior (BLADDER), and posterior (RECTUM) portions (A)</p> Signup and view all the answers

The following is an allantois remnant that connects the bladder with the umbillicus

<p>Urachus (D)</p> Signup and view all the answers

What is a potential consequence of bilateral renal agenesis?

<p>Oligohydramnios (D)</p> Signup and view all the answers

What typically occurs due to the fusion of right and left kidneys in horseshoe kidney?

<p>Normal renal function (A)</p> Signup and view all the answers

In which condition might ectopic openings of the ureter bypass the bladder entirely?

<p>Ectopic openings of urethra in females (C)</p> Signup and view all the answers

What characterizes the condition of multiple kidneys?

<p>Bifurcation of the ureteric bud (A)</p> Signup and view all the answers

Flashcards

Renal Agenesis

Absence of kidney development.

Ectopic Kidneys

Kidneys in abnormal locations, often pelvis or abdomen.

Horseshoe Kidney

Fusion of both kidneys at midline.

Accessory Renal Arteries

Extra renal arteries, frequently during kidney ascent.

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Urachal Fistula

Urachus doesn't regress; urine drains to umbilicus.

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