Editing Penis (section)

=== Corpus cavernosum ===

* '''The erectile bodies; comprised of 2 spongy, paired cylinders'''
* '''Contained in the tunica albuginea'''
** '''The erectile tissues of the normal corpora cavernosa are separated from the tunica by the space of Smith'''
* '''Proximal ends, the crura, originate at the undersurface of the puboischial rami as separate structures but merge under the pubis to form the body of the penis and remain attached up to the glans'''
* '''<span style="color:#ff0000">A septum separates the corpora cavernosa but is permeable distally to allow for free communication between their vascular spaces</span>'''
[[File:Wiki_Penis_Base_Cross_Section.jpg|alt=Wiki Penis Base Cross Section|center|frameless|503x503px]]
* '''Each corpus cavernosum is a conglomeration of sinusoids,''' larger in the center and smaller in the periphery.
** '''In the flaccid state, the blood slowly diffuses from the central to the peripheral sinusoids, and the blood gas levels are similar to those of venous blood.'''
** '''During erection, the rapid entry of arterial blood to both the central and the peripheral sinusoids changes the intracavernous blood gas levels to those of arterial blood'''