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| − | == Erection == | + | == ::[[Reproductive Behaviour - Erection - Anatomy & Physiology|Erection]] == |
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| − | == Introduction ==
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| − | * When sexual receptivity of the female is established and sufficient arousal is accomplished in the male, erection and protrusion of the penis ensue.
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| − | * Successful penile erection requires a complex series of neural and vasomotor reactions.
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| − | * 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]].
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| − | * Erection is characterized by a marked increase in rigidity of the penis.
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| − | * Increased rigidity is the result of increase in arterial inflow of blood compared to venous outflow.
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| − | * Erection requires that blood be trapped within the cavernous sinus of the penis.
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| − | * 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 ==
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| − | == Erection of the Musculovascular Penis ==
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| | == Penile Protrusion == | | == Penile Protrusion == |