Difference between revisions of "Erection - Anatomy & Physiology"
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* Erection requires that blood be trapped within the cavernous sinus of the penis. | * Erection requires that blood be trapped within the cavernous sinus of the penis. | ||
* Increased blood flow to the penis is brought about by vasodilation of the arterioles supplying it. | * Increased blood flow to the penis is brought about by vasodilation of the arterioles supplying it. | ||
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== Erection of the Fibroelastic Penis == | == Erection of the Fibroelastic Penis == | ||
Revision as of 09:14, 10 July 2008
Introduction
- When sexual receptivity of the female is established and sufficient arousal is accomplished in the male, erection and protrusion of the penis ensue.
- Successful penile erection requires a complex series of neural and vasomotor reactions.
- Erection of the penis is necessary for copulation and deposition of semen in the female reproductive tract.
- Erection is characterized by a marked increase in rigidity of the penis.
- Increased rigidity is the result of increase in arterial inflow of blood compared to venous outflow.
- Erection requires that blood be trapped within the cavernous sinus of the penis.
- Increased blood flow to the penis is brought about by vasodilation of the arterioles supplying it.