8 Questions
What is the consequence of renal agenesis?
Potter sequence
What anatomical feature characterizes a horseshoe kidney?
Fusion at the ends of both kidneys
What defines the condition known as 'pelvic kidney'?
Failure of one kidney to ascend
What contributes to the formation of a bifid ureter?
Early splitting of the ureteric bud
What is a characteristic feature of ureteral agenesis?
Failure of one or both kidneys to develop
What is a common consequence of bilateral renal agenesis?
Oligohydramnios
What is the result of the fusion in a horseshoe kidney?
Hooking under the origin of inferior mesenteric artery
What differentiates complete duplication of ureters from partial duplication?
Independently opening into the bladder
Study Notes
- The development of the kidney passes through three phases: Pronephros, Mesonephros, and Metanephros, with each stage having specific characteristics and functions.
- The ureter originates from the renal pelvis, crosses the external iliac arteries, and lies on the anterior surface of the psoas major muscle.
- Different congenital abnormalities of the kidney include renal agenesis (resulting from the failure of kidney development), pelvic kidney (caused by a failure of kidney ascent), and horseshoe kidney (fusion of both kidneys at their lower ends).
- Anomalies of the ureter can include ureteral agenesis (failure of ureteric bud development) and duplication of the ureter, which can manifest as bifid ureter (partial duplication) or double ureters (complete duplication).
- The adult urinary bladder, when empty, is positioned in the lesser pelvis, partially superior and posterior to the pubic bones.
Test your knowledge on the development of the urinary system, including the kidney's three phases: Pronephros, Mesonephros, and Metanephros. Learn about the formation of segmented nephrotomes in the cervical intermediate mesoderm during embryonic development.
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