An introitus is an entrance into a canal or hollow organ. The vaginal introitus is the opening that leads to the vaginal canal.[1]

References

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  1. ^ John H. Dirckx (1997). Stedman's Concise Medical and Allied Health Dictionary (3rd ed.). Williams and Wilkins. p. 451. ISBN 0-683-23125-1.
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  •   The dictionary definition of introitus at Wiktionary