Originally Posted by ticktickticker
>>’Perhaps the tunica has a weak point, analogous to the break in the bone above, which stretches in response to regular stress, while the rest of the tunica remains substantially unaffected’.
I don’t think so, it elongates all the way between the attachment point of the hanger or whatever to the base.
I think I was the origin of this statement, as well. I still believe it may be true. Really, we have no way of knowing from the outside which parts of the penis elongate in response to PE and whether elongation is localized or uniform.
What initially lead me to think this, however, was seeing my own pelvic MRI, in which it was clear that the corpora cavernosa were much narrower under my pubic symphysis than anywhere else. This lead to an idea that growth might be concentrated there, and that that area may represent a weak point.
Taking a different line of reasoning, many guys seem to gain from doing BTC stretching. It’s not only that their penises get lower; they actually get longer (extend farther up the abdomen). Again, the observation lead to an idea. By stretching the ligaments, we allow stress from hanging, stretching, or even normal erections to reach that narrowed part of the shaft which is normally shielded from stress by the ligaments. The penis then grows in this area in response to the stress.
Another idea is that, inside the body, where the corpora cavernosa split into separate crura, the tissue composition of the envelope changes from mostly fibrous (tunica) to mostly muscular (ischiocavernosus muscles). Never having dissected a human, I don’t know whether the tunica really disappears in this area or whether the muscles simply run over it, but the change in tissue composition leads me to believe growth may occur preferentially in the muscle.
Another piece of data is my pullback length. This is how far my glans retracts when I perform a kegel. I have noticed that, as I have gained length, my pullback length has increased. This is another piece of indirect evidence that suggests that the muscle may be getting longer, rather than (or at least more than) the connective tissue envelope.