photos: This site contains research information on penile erections. It also contains photos of erect penises. The text information is not …
Bulls have a fibro-elastic penis.Given the small amount of erectile tissue, there is little enlargement after erection. The penis is quite rigid when non-erect, and becomes even more rigid during erection.
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physiology, innervation, molecular signal transduction of the Erection, Physiology of the Penis, from the online textbook of urology by D. Manski
Photographs of the erect penis showing size, shape and angle of erection
An erection (clinically: penile erection or penile tumescence) is a physiological phenomenon in which the penis becomes firmer, engorged and enlarged. Penile erection is the result of a complex interaction of psychological, neural, vascular and endocrine factors, and is often associated with sexual arousal or sexual attraction, although
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Penis pumps are used for helping men with Erectile Dysfunction (A.K.A. Impotence). They have been proven to be quite helpful, especially when used in …
