MRI of the Penis

This link shows some incredible MRI pix of a normal penis and some penises inflicted with various diseases. The detail is astounding.

http://radiogra phics.rsnajnls. … 21/suppl_1/S283

interesting

Interesting stuff, and good full sized diagrams I saved.

Can anyone point me to some good threads that talk about the various parts, and the science behind PE?

I’m trying to put together a document that combines everything I’ve learned about PE. The penis parts we are working with, how they become deformed for PE, and what effects such as heat help deform them and why.

Great stuff. Thanks Mod! :up:

Great find! If you open the pix in a new window there is an option for even a larger size!

I love this stuff. Thanks…

To answer my own question, I found some great info in a link in Ramrod’s signature.

“Chacun son goût”, ‘to each their taste’. It is great stuff for those of us who are “information vacuum cleaners”.

Really very interesting. It reminds me of old times. When I get a little time I want to revive some of our old threads.

Anyone have any idea about the toughness/elasticity of the Buck’s fascia?

deep fascia (Buck's fascia) - the deep fascia of the penis is a connective tissue sheath that surrounds the CC (and tunica), the CS, and the major nerves, arteries and veins of the penis. The superficial dorsal vein of the penis is outside this sheath. The deep fascia extends from the corona of the glans to the fascia covering the pubic bone and is covered by the skin.~Westla’s post on Penis anatomy

I’m not sure how tough it is, or how I would even explain how tough it is if I did. But according to this it wraps everything, so it is what has to give first before anything else would. It’s also what connects the suspensory ligament to the tunica.

What do we know about fascia in general?

fascia (făsh´ēe) - fibrous tissue network located between the skin and the underlying structure of muscle and bone. Fascia is composed of two layers, a superficial layer and a deep layer. Superficial fascia is attached to the skin and is composed of connective tissue containing varying quantities of fat. It is especially dense in the scalp, the back of the neck, and the palms of the hands, where it serves to anchor the skin firmly to underlying tissues. In other areas of the body it is loose and the skin may be moved freely back and forth. Deep fascia underlies the superficial layers, to which it is loosely joined by fibrous strands. It is thin but strong and densely packed, and serves to cover the muscles and to partition them into groups.
~Columbia Encyclopedia, Sixth Edition, Copyright (c) 2005.

So anther question is: what is tougher to deform, the deep fascia or the tunica?

I think it would be nice if we could put together a detailed explication of the 5 main tissues we need to deform in order to PE successfully.
These were taken from Westla’s Penis Anatomy post here. But I’d really like to expand on these and go into detail about what exactly makes up these tissues, and how can we cause deformation to them in the most efficient way.

1)corpus spongiosum - a sheath of spongy tissue which fills with blood during an erection and surrounds the urethra, usually abbreviated “CS.” It expands at both ends. At the base the expansion is called the “bulb” of the penis. At the other end it is called the glans. Blood within the CS can flow freely between the bulb and the glans.
2)corpus cavernosum - one of two (plural is “corpora cavernosa”) tubes of spongy tissue that fill with blood during an erection, usually abbreviated “CC.”
3)tunica albuginea - a tough sheath of connective tissue in two layers, one surrounds each corpus cavernosum and forms the septum between the two, the other layer surrounds the the CC and the CS. The spongy erectile tissue in the CC would not cause an erection without the tunica because the skin covering the shaft is able to expand. Because of its tough fibrous nature, the tunica resists further expansion after the CC are filled with blood and, under the pressure of the contained blood, forms the rigid structure that is an erection.
4)deep fascia (Buck's fascia) - the deep fascia of the penis is a connective tissue sheath that surrounds the CC (and tunica), the CS, and the major nerves, arteries and veins of the penis. The superficial dorsal vein of the penis is outside this sheath. The deep fascia extends from the corona of the glans to the fascia covering the pubic bone and is covered by the skin.
5)suspensory ligament - this strong band of tissue originates at the pubic bone and splits to connect to the deep fascia of the penis. It does not attach directly to the tunica.(The deep fascia attaches the ligs to the tunica. A fascial sheath is on top of the tunica and fascia are attached to the tunica.)

Besides stretching #5 for length gains, it would seem we would need to deform at least 3 of the others to make an increase in size.
If I was to make a girth gain to my CCs, I would need to also deform the tunica and deep fascia which encase them. So once again, what do we know about these tissues, which is the toughest to deform, why, and how would we best go about doing this?

If only it were that easy.

Red,

According to my understanding, the tunica is much harder to stretch than the fascia. It has a rupture strength of 1500 mm-Hg. It is also much thicker than the superficial or deep fascia.

Yes, Mo, very interesting (except for the pics of the cancerous cocks - ouch!).

But I see that I’ve carelessly confused the tunica with Buck’s Fascia. Clearly the BF is the culprit in gains toughness. I think the tunica is not nearly as resistant; although, not nearly as pliable as the CC/CS of course.

Also, for the first time ever, I’ve seen a far more complete diagram of the CC - which shows that it is ribbed within by the tunica. Very interesting. In all other diagrams, the tunica appeared to encase only the perimeter (or outside) of the CC. But in this diagram, the CC is definitely “sectioned” by the tunica, like a number of small compartments. I had never seen the penis represented that way.

This raises a myriad of questions. The first to jump to mind is that maybe programs that advocate bi-directional jelqing may be onto something. Of course, on the down stroke, you’d have to be careful to fully kegel because you don’t want to enhance your penile drainage system (and thus compromise erectile strength).

But if you look at this pic I’ve lifted, you’ll see that in forward-only jelqing, we’re applying pressure against the “lateral” tunica from only one side.