22,190
edits
Changes
Jump to navigation
Jump to search
m
wikify shaft skin
* Root of the penis (radix): It is the attached part, consisting of the bulb of penis in the middle and the crus of penis, one on either side of the bulb. It lies within the superficial perineal pouch.
* Body of the penis (corpus): It has two surfaces: dorsal (posterosuperior in the erect penis), and ventral or urethral (facing downwards and backwards in the flaccid penis). The ventral surface is marked by a groove in a lateral direction.
* Epithelium of the penis consists of the shaft [[shaft skin]], the [[foreskin]], and the [[preputial mucosa]] on the inside of the foreskin and covering the [[glans penis]]. The epithelium is not attached to the underlying shaft so it is free to [[Gliding action| glide to and fro]].<ref>{{REFweb
|url=http://www.circumstitions.com/completeman/sidegif.gif
|title=How the foreskin works
In girls, the genital fold remains open, in boys it grows together. It transforms into the inner labia and the clitoral hood in girls, and into the [[foreskin]] in boys. The labioscrotal swelling becomes the outer labia and scrotum respectively.
The growing together of the folds results in the seam that runs from the underside of the scrotum and the penile shaft up to the tip of the foreskin. The penis now consists of the shaft containing the erectile tissue, with the glans at the top. The shaft is surrounded by the shaft [[shaft skin]] which, however, is not knitted to it. This mobility, combined with the stretching capabilities of the [[skin]], allows for the growth in dimension of the penis during an erection. During an erection the erectile tissue fills with blood, giving the penis its stiffness and enlarged size.
In the area of the [[glans]] the shaft [[shaft skin]] transitions into the outer layer of the foreskin, which extends past the tip of the glans. Parallel to that runs the inner layer of the foreskin. It is attached behind the rim of the glans, and runs between the glans and the outer foreskin layer, also past the tip of the glans. At the tip, the inner and outer foreskin layers are joined together.
This junction makes up the [[ridged band]]. At the underside of the penis, in the area of the seam, the inner foreskin layer is connected to the glans by the [[frenulum]].
[[File:Circumpendium-2-penis-1-English.jpg|center|400px]]
Like the shaft [[shaft skin]], the foreskin layers are neither fused to the penis, nor to each other, but are moveable against each other. This enables the foreskin to be retracted all the way past the glans.
[[File:Circumpendium-2-penis-2-English.jpg|center|400px]]