APPLIED RADIOLOGICAL ANATOMY

ANATOMY

GENITO URINARY AND ADRENAL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which from the following is correct in urinary system embryology?
A
The urogenital system develops from the intermediate mesoderm which extends along the dorsal body wall of the embryo
B
Pronephroi is transitory, nonfunctional structures appear in the 4th week
C
Mesonephroi consists of glomeruli and mesonephric tubules. These tubules open into the mesonephric ducts
D
All are the right
Explanation: 

Detailed explanation-1: -The development of the urinary system involves the transient formation and remodeling of the intermediate mesoderm, being the middle germ layer of the developing embryo. During development, three successive pairs of kidneys appear: the pronephros, the mesonephros, and the metanephros.

Detailed explanation-2: -So, the correct answer is ‘Kidney–>Ureter–>Bladder–>Urethra’. Was this answer helpful?

Detailed explanation-3: -The urogenital system is formed from intermediate mesoderm, while the lining of the urethra, urinary bladder, and reproductive system is composed of endoderm.

Detailed explanation-4: -The developmental process of ureter starts as an outgrowth of the mesonephric duct at the end of the fourth week of embryonic life. The outpouching then grows cranially to meet and unite with the metanephric cap. The time of this meeting and union is important, as it determines future nephric development and ascent.

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