Tuesday, April 10, 2018

What Is That Line?

This question comes from Faithful Reader Stan:

"I have always wondered and have asked many, with no real answer. I have seen in numerous photos and in many men. The line that seems to always come between the left and right testicle. I have it, I’m certain you must have it. The question is….what is it, why is it there ? Something to do with birth?"

Not birth, it has to do with developmental gestation. At the moment of conception we are all female. (This is the reason men have nipples.) It remains so until the Y chromosome triggers a wave of testosterone within the fetus. Through that bath of male hormone, the clitoris turns into a penis, the ovaries become testicles, Fallopian Tubes develop into Spermatic Cords (Vas Deferens and Seminal Vesicles,) and the the labia majora (the outer lips of the vaginal area) close up to form the scrotum - and, thus, the line, or "seam" that you notice called the Middle Septum.
2

3

4
The odd thing is that there is no female counterpart to the Prostate. That is strictly a male component and, to my knowledge, there still is no idea as to why. Maybe it was given as a replacement for that missing rib. LOL.
5

6

7
Now, take a look inside and you'll find that each testicle is shrouded within the Tunica Vaginalis, which is enshrined by the External Spermatic Fascia. Those are to help keep the testicles separated from one another.  

It is the deformity of the Tunica Vaginalis which enables easy testicular torsion (twisted testicle) a very painful strangulation of the testes) in some men.
Nature is a wonderful thing, and the reason we shouldn't be ashamed of what we've been given.
8
We should be proud of it - because don't have anything which nature has not provided.
9

10

11
 It functions as nature intended.
12

13

Thanks for the question, Stan!

11 comments:

Anonymous said...

Thanks for the answer. As always your information is always interesting.
And in the case of my question. . . . . you told me more than I wanted
(needed?) to know. THANK YOU - Stan

whkattk said...

@ Stan - Well, I can get carried away at times. LOL. But, hopefully the added information will be useful to you some day.

Xersex said...

very interesting!

SickoRicko said...

You always have such interesting posts, and hot pix to accompany them!

mistress maddie said...

Boy that is pretty fasanating. I always wondered that same thing.

Patrick said...

Very interesting, my friend! So men have a prostate that often causes a lot of problems! Are we lucky or unlucky??!!??! Thanks again for your visits and comments. Our unusually warm Autumn continues.

A French Patrick said...

Perfectly exact, and very clear.

Even if, but it is a detail, more precisely the trigger of this process is a single gene of the Y chromosome, a gene named SRY (sex-determining region Y) by the scientists.

Even if it is throughout its life in the womb that the male fetus is literally bathed in testosterone, (as well as other androgens or male hormone) spurring its transformation from potential female into actual male.

"Potential female", and not "female". I always learnt that the initial sex is indefinite, neither male nor female, even if everything starts from a Y chromosom. Yes, men have nipples, but in the same way after their menopause, the hair system of the face of numerous women develops. It is an unstable equilibrium on both sides, and I think that nobody is 100% male or 100% female.

Love, hugs and bisous, my darlings Jean and Pat.

Jean WM said...

Always interesting. I bet few guys know this. Hugs and bisous dear French Patrick.

Anonymous said...

I always thought the prostate was the womb in men.

Fullmoonma said...

Nice diagram, although the cut penis is disturbing! It answered the questions I've had about anatomy since my inguinal hernia repair in January. This penetration of the abdominal muscles was described my my surgeon as a design defect common to all men - does give him a steady income though!

The conversion process from female to male isn't entirely fool proof, resulting in various alternative configurations of the genitals in a few of us, which takes time getting used to...

Anonymous said...

The line under your penis, by the way, is called a raphe, another type of seam. It can also be messed up by a circumcision, going off in an odd direction.