4,503
edits
Changes
Jump to navigation
Jump to search
Pre-copulatory Behaviour - Anatomy & Physiology (view source)
Revision as of 09:10, 10 July 2008
, 09:10, 10 July 2008→Erection
== Erection ==
== Erection ==
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 [[Copulation_-Sperm_in_the_Female_Tract_-_Anatomy_%26_Physiology|semen in the female reproductive tract]].
== 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 [[Copulation_-Sperm_in_the_Female_Tract_-_Anatomy_%26_Physiology|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.
== Erection of the Fibroelastic Penis ==
== Erection of the Musculovascular Penis ==
== Penile Protrusion ==
== Penile Protrusion ==