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perineum
(redirected from Anogenital distance)

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
per·i·ne·um  (pr-nm)
n. pl. per·i·ne·a (-n)
1. The portion of the body in the pelvis occupied by urogenital passages and the rectum, bounded in front by the pubic arch, in the back by the coccyx, and laterally by part of the hipbone.
2. The region between the scrotum and the anus in males, and between the posterior vulva junction and the anus in females.

[Middle English, from Medieval Latin perinaeon, from Greek perinaion : peri-, peri- + inn, to excrete.]

peri·neal (-nl) adj.

perineum [ˌpɛrɪˈniːəm]
n pl -nea [-ˈniːə]
1. (Life Sciences & Allied Applications / Anatomy) the region of the body between the anus and the genital organs, including some of the underlying structures
2. (Life Sciences & Allied Applications / Anatomy) the nearly diamond-shaped surface of the human trunk between the thighs
[from New Latin, from Greek perinaion, from peri- + inein to empty out]
perineal  adj

perineum  (pr-nm)
Plural perinea
The region between the scrotum and the anus in males, and between the posterior vulva and the anus in females.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.perineum - the general region between the anus and the genital organsperineum - the general region between the anus and the genital organs
region, area - a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region"
Translations
perineum [ˌperɪˈniːəm] N (perinea (pl)) → perineo m
perineum
n (Anat) → Damm m, → Perineum nt (spec)


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Anogenital distance (AGD), a sexually dimorphic trait in rodents and humans, is considered a reliable marker of androgen and antiandrogen effects in rodents, but data on AGD in humans are sparse and longitudinal changes during infancy have not been assessed.
Moreover, boys with a short anogenital distance tended to have smaller penises and were far more likely to have testes that didn't descend properly into the scrotum.
Reproductive biology expert Professor Frederick von Saal, University of Missouri-Columbia in the US, said the male hormone testosterone had a direct effect on anogenital distance, causing it to be longer in males than in females.
 
 
 
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