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Inguinal canal
A passage in the lower anterior abdominal wall which in the male allows passage of the spermatic cord and in the female contains the round ligament. Because of the weakness it creates in the abdominal wall, it is the most frequent site for a hernia.

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inguinal canal n a passage about one and one half inches (4 centimeters) long that lies parallel to and a half inch above the inguinal ligament: as
a) a passage in the male through which the testis descends into the scrotum and in which the spermatic cord lies called also spermatic canal
b) a passage in the female accommodating the round ligament

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either of a pair of openings that connect the abdominal cavity with the scrotum in the male fetus. The inguinal canals provide a route for the descent of the testes into the scrotum, after which they normally become obliterated.

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canalis inguinalis.

Medical dictionary. 2011.