Anatomy & Physiology of Orgasm: (4 of 9) Anatomy Basics

Anatomy & Physiology of Orgasm: (4 of 9) Anatomy Basics


o some anatomy, right? Let’s check it out.
So, this is probably the areas that most people see when they study the reproductive system.
So I would say even back in middle school for those of you that had sex ed in middle
school or studied anatomy, this is probably what you saw, right? And if that’s the case,
then you might come away with the impression that where they point to the clitoris that
that’s all you’ve got and it looks like kind of a small target there, just a little button
that might be hard to find, right? The cool thing is that it is actually a whole lot bigger,
it’s just hiding, okay? So this was one of the things that really ticked me off about
the education that I got as an undergrad is that they never showed that picture, they
only showed the first one and I think that people should understand their body and how
it works. So, if we take a look and compare these two images…. Okay, so here we see
the clitoris here. That’s the glans of the clitoris, here is the glans of the clitoris
here. And here is everything that’s hiding. We call these the legs or the crura (crura
just means legs), so there’s the legs. Here’s a shaft coming up here. And then here’s the
glans at the end. Now admittedly the glans has the greatest number of nerve endings but
the entire clitoris, everything that you see here (but that is below the surface), that
is all erectile tissue and in fact, as we will see in a few slides, is very similar
to the male anatomy. Right? That is where we’re really not as different as we sometimes
think. All right. Now the other thing is that these are really cute cartoon pictures but
that’s not really how people look in real life, all right? So, this is more like lots
of pictures that we see of real life, right? See these pictures? I borrowed them from Dr.
Reeves. The point is that women don’t look like the textbook, right?; they look different.
Men don’t look like the textbook either, they look different. Now I know not all of you are used to seeing
pictures of women’s anatomy but it’s real anatomy and in our human anatomy labs, we
ask anatomy and we really point down there and we really name the structures that actually
make is the true anatomy. The structures that we’re seeing here again are all external genitalia.
You can see the inner and outer lips or labia and you can see the vaginal opening in most
cases. And you can see the urethral opening is just anterior to that, okay? So there’s
some real pictures for you. Because, we don’t again people, they don’t want to look but
it’s just anatomy. It’s not that different from your hand, really, it’s just somewhere
hiding, that’s all. Anyway, this is a cadaveric specimen and this is also showing the female
anatomy that we can’t see on the surface, right? Again, it just follows up with the
idea that the clitoris that we showed in that last picture at the bottom where you can see
actually more of the clitoris, that you can actually see it here in a cadaveric specimen,
so it’s not just someone’s imagination that they got excited while they were drawing.
Here is the anatomical specimen that matches with that, okay? All right. So, this is how
we look in real life, not just in the textbooks. The other structure that I didn’t point out
before and I’ll point at a few more is that the clitoris isn’t the only part of erectile
tissue, it’s just the only one that gets any press or button pressing or whatever you call
it. If you notice on either side here (forget my mess over here)… so on either side here
that you might have noticed on the previous slide as well, we have also the bulbs of the
vestibule. And actually we have two more areas of erectile tissue that I’ll show you in another
image. But we have got to give the guys some time
here too, right? So here we have anatomy of the penis and again, most of the time what
you see (this is kind of painful looking isn’t it?)…. In any case, most of the time the
things that you learn will be about the corpora cavernosa, so we see the corporal body that
is the majority of the erectile chamber. But we also have spongy tissue and again I’m going
to point that out so that you can see also how it is very similar in the female, just
slightly different orientation, but still very much the same. Okay? You can see that
this is heading us back towards the bladder here so we can see the prostate gland as well
and that leads right to the bladder, so you can see the urethra just cuts right through
the whole way so that it can allow both urine and it can allow sperm and ejaculate to exit
in the same way. But you see, men don’t look like that either, right? They don’t look like
the little filleted drawing at the bottom, thank goodness. So, again textbooks don’t
necessarily demonstrate for us what the real anatomy looks like and it is my personal issue
that in anatomy books and whatnot that they somehow still are a little prudy for me and
say, like oh, better not show that. But that’s is what’s really there, so for our students,
many of them are looking to be healthcare professionals. So it sounds inappropriate
to me that healthcare professionals would not have looked yet, right? That seems like
a bad idea, so that is why we try to be very real about the anatomy and physiology. So transitioning just a little bit but I mentioned
that we wanted to talk about how the girl and boy parts really are a lot more similar
than we sometimes think. Again, the main difference being that most of the male anatomy is very
visual, it’s external, and a lot of those same components in a female are just below
the surface anatomy, so they’re not right there for you to see. But ultimately, it is
all about erectile tissue, it’s all about nerve endings, and it’s all about erection
and ejaculation, therefore. Because both women and men go through that same process, again
it is just that one is a lot more visual than the other because it’s a lot more external
in nature. Okay? Let’s look at some pictures so we can compare
back and forth. So the analogous structures that we’re looking at here, I’ll try to give
you a little orientation to it. Okay, so over here in the male side we are looking at the
testes here and if we go over, you can see we’ve got the ovaries, of course, are the
analogous structure. The one that gets talked about a lot and apparently they’ve recently
made this an official change in anatomy that the Federation for Anatomy Terminology if
you have any idea there was such a body, that is what they do. Anyway, so can you name this
structure on a man? It is the prostate. So around a female urethra, similar to how this
is around the male urethra, you know what we now call that in a woman—prostate, right?
So it took a long time for people to say okay, maybe that really is the same structure in
a woman as it is in a man. Other than being similar tissue type, the other reason that
they’ve moved in that direction is the prostate specific antigen is released in a woman as
well as a man and so they started putting 2 and 2 together and saying, I guess they
really do have a prostate. The part that I think is so interesting is why it is such
like wild debate—-Like, no, they don’t have a prostate!… Like, who cares if we got a
prostate? It’s just me and the anatomy. We don’t have to be too political about it, do
we? So I’ve found it really interesting the scientific debate that goes on about these
kinds of details. The other thing I wanted to point out that is analogous between a male
and female are these glands right here. So these are called the greater vestibular glands
in a female and they would release fluid right into the vaginal opening and then here we
have very similar bulbourethral gland that’s on either side that also empties the same
kind of fluid into the urethra for a man during arousal. I will show you a couple of other
pictures just to demonstrate again the similarities and differences. So here is a female and we
can again see another cartoon drawing of the crura here. (Let’s skip my mess over here).
So here’s the crura (that’s the legs of the clitoris) and then here’s the glans of the
clitoris and the shaft in between. Here’s that bulb I was talking about before. And
then you can see the muscles that lay over top of those structures. So those muscles
can be part of the contraction that occurs during orgasm. Let’s look at similar structures
in the man. So notice that they also have (sorry more filleting, I apologize). So here
we go. There is also the legs and the body, so you can see that that is a similar structure.
They have the same muscles overlying that structure. Then along the center, that’s a
spongy tissue. So in men, the difference is the importance of the spongy tissue is to
help make sure that the urethra stays patent, so it can open because that is where you need
to have fluid released from. But importantly, upstream from that is the prostate that will
clamp down and not allow urine to pass at that same time. So this is again the female
and male anatomy the same. We both have a prostate that will clamp down the urethra
and not allow urine to flow through and instead you’ll have the fluids that are appropriate
for ejaculation.

7 comments

  1. it can sometime be considered an embarrassing subject, laughter is make them feel more comfortable with the discussion.

  2. Sounds like you discovered Greyzar Drinbo’s website, didn't you? It's potent stuff right? Doesn't matter how bad you think your PE is, you can easily last 30-45 minutes in bed with a set of techniques you can begin today.

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