Physiology and Dysfunction
نویسنده
چکیده
Copulation normally culminates with two physiologically distinct events known as emission and ejlzctllafion.3~ 3o Emission is the release of sperm and accessory gland fluids into the pelvic urethra. Ejacdafion is the forceful expulsion of the combined fluids (i.e., semen) from the urethra. The associated perceptual-cognitive event called ovgrrsm in humans has not been characterized in nonhuman species. The neurophysiologic correlates of orgasm33 no doubt occur in animal species, so it is reasonable to posit that animals perceive some form of analogous satisfying perceptual resolution of copulation. This article begins with a brief outline of the physiology of emission and ejaculation followed by a discussion of related disorders in stallions.
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