I think things have got out of hands here. I ask everybody to read everything that Pudendum has written in this thread. I think he is correct what this so called cord is.
Septum is Latin and means wall between two chambers, more or less. We have it for example in our nose and heart and, yes, in our penis where it separates the two CC’s. In penis, the septum is just a part of the connective tissue, tunica albuginea that surrounds the CC’s. Also CS, which surrounds the urethra, is surrounded by this tunica. The septum is not the ‘cord’ most people talk about, it is normally way too thin for that.
Both tunicas, the one that surrounds both CC’s and the one that surrounds CS, are surrounded by another connective tissue structure called Buck’s fascia. At the top of the penis this structure is thickened and forms a tunnel of some sort that contains the deep veins and arteries and also the nerve. This dorsal thickening of Buck’s fascia is basic penile anatomy and is found in every normal penis. It has nothing to do with Peyronie’s disease, in itself . This dorsal thickening is the ‘cord’ most people are talking about here, as for some men this structure is very hard and restrictive to streching.
I’m not a native English speaker nor am I a medical professional. But I have read this thread and think Pudendum, who is a medical professional, is spot on. I also googled penis anatomy and there are plenty of pictured that states the same I wrote here.
I can most definitely feel my dorsal thickening and it is very strong against the stretch. As a newbie, I will try my hardest to tackle it.