The inner sphincter is involuntary and the outer is voluntary. Anatomical terminology [ edit on Wikidata ]. This is because of indirect stimulation of the prostate and vagina or clitoral legs.
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Skip to main content. In psychologythe Freudian term anal fixation is used. Skip to main content.
Anal sex. To prevent diseases of the anus [ citation needed ] and to promote general hygiene, humans often clean the exterior of the anus after emptying the bowels. Anal pleasure art Sexuality: An Introduction to the Work of a Medical Examiner: