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16 Cards in this Set
- Front
- Back
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What are the derivatives of the genital ducts?
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Mesonephric ducts and paramesonephric ducts
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Male vs. female
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male – high level of testosterone stimulates development of the mesonephric duct; Mullerian inhibiting factor prevents development of paramesonephric ducts
female – low level of testosterone prevents development of mesonephric ducts and no Mullerian inhibiting factor permits development of the paramesonephric ducts |
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Mesonephric ducts in male vs. female
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male: epididymis, ductus deferens, seminal vesicle and ejaculatory duct
female: epoophoron, paroophoron, Gartner’s duct |
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Paramesonephric duct in male vs. female
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male: appendix of testes and prostatic utricle
female: uterine tube, uterus and superior part of vagina |
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Horseshoe Kidney
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occurs when the inferior poles of the kidneys contact each other before ascent; the kidneys fuse and ascent to the lumbar region is prevented by the inferior mesenteric artery
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Bifid ureter
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involves the ureteric bud
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Epispadias
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rare; seen with exstrophy of the bladder
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Hypospadias
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common; opening on the ventral aspect of the penis; results from a failure of urethral folds to completely meet
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Turner’s syndrome
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45 XO; infantile female genitalia, ovarian streaks and webbed neck
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Klinefelter’s syndrome
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47 XXY; common (1/500); gynecomastia, infertile males
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UG folds in male vs. female
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Male: floor of urethra
Female: labia minora |
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Genital swelling in male vs. female
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Male: scrotum
Female: labia majora |
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Genital tubercle in male vs. female
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Male: penis
Female: clitoris |
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UG sinus in male vs. female
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Male: urethra/prostate
Female: urethra/vagina |
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Gonads
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develop from epiblast and migrate along the yolk sac and mesentery to the lumbar region
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Hydrocele
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fluid in the cavity of the tunica vaginalis from a patent processus vaginalis
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