Knowledge of the anatomical structures and of the physiological and neuropharmacological processes involved in the mechanism of erection is necessary for a pathophysiologic understanding of both erectile dysfunction and the therapeutic approach to be taken. The possibility of pharmacologically inducing erect...
Erection is defined as “the state of the penis when the erectile tissue becomes filled or swollen (tumid) with blood and causes the penis to become rigid and elevated. It is a complex process involving central nervous system; peripheral nervous systems; hormones; smooth muscles; and vascular ...
Figure 1. Click for a larger image. The structures of the male reproductive system include the testes, the epididymides, the penis, and the ducts and glands that produce and carry semen. Sperm exit the scrotum through the ductus deferens, which is bundled in the spermatic cord....
Arterial vasodilatation via the release ofnitric oxide(NO) only incoronary arteriesand vessels of thepenis(erection) Veins Venousconstriction →↑preload→↑stroke volume Venousdilatation →↓preload→↓stroke volume Heart ↑ Contractility ↑Heart rate ...
Penile erection is the process by which the flaccid phallus becomes engorged and rigid, thus facilitating sexual intercourse. The mechanisms and means by which the penis becomes erect have been a source of fascination, superstition, and interest for humans throughout recorded history. It is only wi...
The male sexual response cycle consists of excitement, plateau, orgasm, and resolution. The initial event, penile erection, is produced by arteriolar dilatation and increased blood flow to the erectile tissue of the penis. Erection is a reflex response initiated by visual, olfactory, or imaginative...
But more and more empowered women are acknowledging that they enjoy being dominant, “on top,” wielding a whip or even sprouting apenis. Yes, Freud was right aboutsomewomen having “penis envy”… in a way. The “penis substitute” could be the obvious strap-on dildo, but it could also...
摘要原文 The penis contains two erectile spaces, the cavernosal and the spongiosal, and erection depends on the filling of these spaces with blood. The cavernosal space consists of the right and left corpora cavernosa, which communicate freely with each other; the spongiosal space consists of th...
But more and more empowered women are acknowledging that they enjoy being dominant, “on top,” wielding a whip or even sprouting apenis. Yes, Freud was right aboutsomewomen having “penis envy”… in a way. The “penis substitute” could be the obvious strap-on dildo, but it could also...
The superior, anterior portions of the labia minora come together to encircle theclitoris(or glans clitoris), an organ that originates from the same cells as the glans penis and has abundant nerves that make it important in sexual sensation and orgasm. Thehymenis a thin membrane that...