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http://penis-en largement-manua … ard/anatomy.htm
Does anyone know where these illustrations are from. I am trying to learn everything I can about tunica anatomy. I probably should have started here.
In one looks closely at the last image above, they can start to imagine how the tunica grows (if this is correct). There seem to be anchor points.
How connected are the two CC’s? I had the impression that they were fairly distinct, but those diagrams suggest that the septum has more gaps in the wall than solid between the two.
There is blood exchange between the two CC’s, so the diagram above is at least somewhat incomplete. I’ve read somewhere (don’t have a link handy) about this, which explained why Caverject affects both chambers when only injected into one.
http://penis-en largement-manua … ard/anatomy.htmDoes anyone know where these illustrations are from. I am trying to learn everything I can about tunica anatomy. I probably should have started here.
In one looks closely at the last image above, they can start to imagine how the tunica grows (if this is correct). There seem to be anchor points.
Terrific drawing! This shows much more detail than I’ve ever seen before.
The CCs have gaps that allow fluid exchange between them. Otherwise, you could get left hand and right hand erections. Toward to glans, the septum is actually incomplete, i.e., does not completely separate the CCs.
I think of the CCs as having two legs that separately attach to the pubic ramii, but the legs join together distally to form more of a single trunk. The opposing lateral “walls” of each CC, which start out as distinct, distally merge into one structure (the septum), which then partially disappears toward the very end (glans).
This is my recollection. I’ll try to find a cite.
Terrific drawing! This shows much more detail than I’ve ever seen before.
I don’t know how accurate it is. I am hoping someone knows where it originally came from.
This one makes me gag:
I found it with google images. Here is the site:
I know that a series of highly detailed and accurate illustrations and or electron micro graphs must exist.
More gag:
Bad links removed
Anyone want to donate their dick for the greater good of PE science so that we can see fist hand what it looks like online?
Please pass the soy sauce!
Are you sure those top ones are the penis? They might be some other organ—maybe an ovary.
I’ve called a local library to arrange delivery of a PubMed article showing pictures of monkey tunica. I’ll order it if it’s not an arm and a leg.
Here’s the abstract of the paper I’m trying to get:
http://www.ncbi .nlm.nih.gov/en … itool=iconabstr
Three dimensional architecture of collagen fibrils in the corpus cavernosum of the crab-eating monkey.Nakano T.
Department of Anatomy, Aichi Medical University, Japan.
The three-dimensional architecture of the collagen fibrils in the corpus cavernosum of the crab-eating monkey was studied by scanning electron microscope, after digestion of cellular and some extracellular elements by NaOH. The tunica was made up of undulating bundles of collagen fibrils which were arranged in inner circular, middle intermingled and outer longitudinal layers. The trabecula appeared as numerous cylindrical tubes which had once accommodated individual smooth muscle fibers. The outer surface of the trabecula was covered with a sheath woven from twisting bundles of collagen fibrils. These architectural features of the collagen fibrils seem to be related to fluctuations in the diameter and shape of the corpus during erection and detumescence.
PMID: 8942195 [PubMed - indexed for MEDLINE]
tunica was made up of undulating bundles of collagen fibrils which were arranged in inner circular, middle intermingled and outer longitudinal layers
Is this intermingled layer for reference in these monkeys only?
I don’t know.
BTW, I just successfully signed up for an account on PubMed and ordered the article. Because of copyright restrictions, I won’t be able to post it, but I will attempt to paraphrase it and describe any pictures.
Here’s a description of penile anatomy that uses the same figure as used in the Tom Hubbard link above:
Interesting factoid:
During an erection, the tunica albuginea thins from 2 mm to 0.25-0.5 mm, thus making it more susceptible to traumatic tearing.
Penismith and Shiver:
I don’t know whether you’ve seen this before, but here’s some very interesting information about Verapamil gel. The urologists think it works by inhibiting new collagen growth and promoting secretion of collagenase.
This certainly supports Penismith’s point that (some) treatments for PD may be useful in fighting tunica strengthening:
“We believe [verapamil’s action] causes reduction of new collagen fibroblasts and maturation and activation of fibroblasts of collagenase,” said William P. Fitch III, MD, associate professor, department of surgery, division of urology, University of Texas Health Science Center, San Antonio.
However, the article reports that another study failed to show that transdermally applied Verapamil was absorbed at all by the tunica.
I don’t know how accurate it is. I am hoping someone knows where it originally came from.This one makes me gag:
I’m pretty sure that’s an ovary:
The ovary is covered by a low cuboidal epithelium, called the germinal epithelium (because it was wrongly thought to be the origin of oocytes). Beneath this epithelium is the tunica albuginea, which consists of collagen fibers and covers the outer zone, called the cortex. The cortex is highly cellular and contains follicles and corpora lutea and albicantia. This zone merges with the inner medulla without a clearly defined demarcation line. The medulla is smaller and contains loose connective tissue, occasional smooth muscle cells and numerous, tortuous arteries and veins.
Penismith and Shiver:I don’t know whether you’ve seen this before, but here’s some very interesting information about Verapamil gel. The urologists think it works by inhibiting new collagen growth and promoting secretion of collagenase.
This certainly supports Penismith’s point that (some) treatments for PD may be useful in fighting tunica strengthening:
However, the article reports that another study failed to show that transdermally applied Verapamil was absorbed at all by the tunica.
The Verapamil gel seems very hard to absorb. Most of PDLabs references are for their own benefit, but it seems regular gel and injections don’t work too well. PDLabs gel (by their own claim) works, as well as the electric transfusion method that I seem to have a lot of trouble remembering the correct name for.
Verapamil is a calcium ion blocker, but I believe that from a preventitive point of view, the only thing that is required is to prevent excessive inflammation, hence my hard sell wrt bromelain. I defy anyone to get a donut or edema with enough bromelain. It’s cheap and innocuous enough for almost anyone to try.