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Anatomy & Physiology - Essential Study Partner
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Anatomy & Physiology ESP 2.iso
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rem1.dxr
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00162_Field_REM1S3C narration.txt
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1999-11-09
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The penis is filled with vascular erectile tissues that allow it to exist in a flaccid or erect state.
An erection is achieved through regulation of blood pressure within the penis.
Upon psychic or tactile sexual stimulation, venous blood flow out of the penis decreases while arterial flow into the erectile tissue increases.
The size of the erectile tissues is limited by a dense convering called the tunica albuginea.
Engorgement of these tissues with blood results in a stiffening of the penis.