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Topic: Erectile tissue

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  Erectile tissue - Wikipedia, the free encyclopedia
Erectile tissue is tissue in the body that can become erect, usually by becoming engorged with blood.
Erectile tissue exists in places such as the corpora cavernosa of the penis and in the clitoris.
However, the erection of nipples is not due to erectile tissue, but due to the contraction of smooth muscle under the control of the autonomic nervous system.
en.wikipedia.org /wiki/Erectile_tissue   (93 words)

 Erectile Disfunction
Erectile dysfunction (ED) is the inability of a man to achieve or maintain an erection sufficient for his sexual needs or the needs of his partner.
Erectile dysfunction has many causes, most of which are treatable, and is not an inevitable consequence of aging.
Because blood must stay in the penis to maintain rigidity, erectile tissue is enclosed by fibrous elastic sheathes (tunicae) that cinch to prevent blood from leaving the penis during erection.
www.farberpearsonurology.com /erectile.html   (3168 words)

 Handbook of Andrology
The spongy erectile tissue is located in paired cylinders, called corpora cavernosa, which are located on the dorsum of the penis.
The corpora cavernosal sinus tissue is supplied by a slightly eccentric central vessel (the cavernosal artery), which is derived from the pudendal artery, and branches to form the helicine arteries (Fig.2).
Some of the basic physiology and anatomy of the corpora cavernosa tissue remains to be discovered; pathophysiological details of erectile dysfunction are needed, particularly in regards to the function and integrity of the sinusoidal smooth muscle.
www.andrologysociety.com /resources/handbook/ch.19.asp   (1603 words)

 SIU SOM Histology ERG
Erectile tissue contains a specialized arrangement of arteries, shunts, and venous sinusoids within a matrix of connective tissue and smooth muscle, forming "a highly structured criss-crossing of interconnected fibers and spaces that are tensed as the cylinder expands during erection.
The erectile tissue is organized into paired dorsal corpora cavernosa and one ventral corpus spongiosum.
Nevertheless, you should be able to observe several prominent features including erectile tissue of the corpora cavernosa with numerous interconnected vascular channels, the surrounding dense connective connective tissue of the tunical albuginea, conspicuous nerves and blood vessels, the urethra lined by transitional epithelium (urothelium), and keratinized epithelium of the skin.
www.siumed.edu /~dking2/erg/penis.htm   (500 words)

 Impotence (Erectile Dysfunction)   (Site not responding. Last check: 2007-10-13)
Erectile dysfunction most commonly occurs when the penis is deprived of oxygen-rich blood.
Erectile dysfunction is more common and more severe in men with hypertension than it is in the general population.
Erectile tissue is permanently damaged when these devices are implanted.
www.reutershealth.com /wellconnected/doc15.html   (9279 words)

 Dr Karl's Homework - Nipples and Erectile Tissue (26/1/2000)
Erectile tissue is a special kind of tissue that swells and grows bigger, simply because blood flows into it, and can't get out.
Erectile tissue has arteries that can carry blood into it, large spaces that can be filled with the trapped blood, and veins that can be blocked to trap the blood inside.
In the human, you mainly find erectile tissue in the penis, in the clitoris, and in the nose.
www.abc.net.au /science/k2/homework/s95609.htm   (348 words)

 Urology Consultants - Urology - Winter Park and Longwood, Florida - Pharmacologic Erection Program
In erectile tissue both drugs mimic the action of natural neurotransmitter substances and cause both an increase in arterial blood inflow and a decrease in blood drainage.
The two erectile bodies begin in the crotch area near the buttocks and end underneath the head of the penis.
g) cause scarring of the erectile tissue or injury to the artery of the erection tissue.
www.urologyorlando.com /erection.shtml   (1803 words)

 Erectile dysfunction
When erectile dysfunction proves to be a pattern or a persistent problem, it can interfere with a man's self-image as well as his and his partner's sexual life.
Erectile dysfunction may also be a sign of a physical or emotional problem that requires treatment.
But if erectile dysfunction lasts longer than two months or is a recurring problem, see your doctor for a physical exam or for a referral to a doctor who specializes in erectile problems.
www.cnn.com /HEALTH/library/DS/00162.html   (2469 words)

 Impotence (Erectile Dysfunction)
Erectile tissue is rich in tiny pools of blood vessels called cavernous sinuses.
Because erectile dysfunction is often due to blockage of oxygen in the arteries that effect the penis, other diseases that are caused by arterial blockage are associated with erectile dysfunction.
Even if erectile dysfunction is caused by a physical problem, interpersonal, supportive, or behavioral therapy can be of help to a patient during all phases of the decision-making process regarding possible methods of treatment.
www.mercydesmoines.org /ADAM/WellConnected/articles/000015.asp   (9406 words)

 Erectile Dysfunction and Impotence Treatment > Disorders of the Penis
Connective tissue is specialized tissue—such as cartilage, bone and skin—that acts to support other body tissues.
With the second technique, the surgeon removes or pinches the tissue from the side of the penis opposite the plaque, which cancels out the bending effect.
In extreme cases, the lack of blood flow can result in the death of tissue (gangrene), and amputation of the penis may be necessary.
www.emaxhealth.com /52/873.html   (2111 words)

 Erectile dysfunction and diabetes: Keys to prevention and treatment
Erectile dysfunction is a common complication of diabetes.
Erectile dysfunction is the inability to achieve or sustain an erection of sufficient rigidity for sexual intercourse.
Erectile dysfunction, also called impotence, isn't fleeting or isolated sexual failure, which many men experience at some point in their life.
www.cnn.com /HEALTH/library/DA/00045.html   (1628 words)

 Cornell Sexual Medicine Program - Erectile Dysfunction - Erections
The penis is an organ with paired erection chambers (corpora cavernosa), which are filled with spongy erectile tissue (corporal sinusoids) composed predominantly of muscle.
Erection is a hydraulic event, regulated by hormones and nerves, which allow increased blood flow into and storage of blood within the erectile bodies leading to an increase in pressure and the development of rigidity (hardness).
In the penis the hose is represented by the erection arteries, which rapidly carry blood into the erectile bodies and the valve mechanism, while complicated in its structure, ensures that the blood is trapped inside the erectile bodies until ejaculation occurs or the sexual stimulus has passed.
www.cornellurology.com /sexualmedicine/ed/how.shtml   (438 words)

 Erectile dysfunction: Viagra and other oral medications - MayoClinic.com
Increased blood flow makes erectile tissue swell and compress the veins that carry blood out of the penis, resulting in a full erection.
Erectile dysfunction medications are dangerous when used with nitrate medications, such as nitroglycerin (Nitro-Dur, others), often prescribed to prevent or treat acute angina (chest pain due to coronary artery disease).
Because NAION and erectile dysfunction share many of the same risk factors, it's unclear whether the drug or an underlying condition is responsible.
www.mayoclinic.com /health/erectile-dysfunction/MC00029   (874 words)

 Urological Conditions and Treatments - Erectile Dysfunction
Erectile Function Tests-tests that assess erectile function examine the blood vessels, nerves, muscles, and other tissues of the penis and pelvic region.
Duplex ultrasound-Duplex ultrasound is used to evaluate blood flow, venous leak, signs of artherosclerosis, and scarring or calcification of erectile tissue.
Oral medications used to treat erectile dysfunction include selective enzyme inhibitors (e.g., sildenafil [Viagra®], vardenafil HCl [Levitra®], tadalafil [Cialis®]) and yohimbine (Yohimbine®, Yocon®).
www.uclaurology.com /conditions/Erect19.cfm   (3170 words)

 Rabbits' male members grown in lab   (Site not responding. Last check: 2007-10-13)
Tissue engineers have successfully replaced rabbits' penises with segments grown in the lab from the creatures' own cells.
The cells were grown in a lab dish and after a few days, they resembled real erectile tissue, the researchers said.
Then erectile tissue was removed from the penises of 18 rabbits and was replaced with the engineered tissue.
www.cbc.ca /news/story/2002/09/12/rabbits020912.html   (1238 words)

 Planet Ark : Erectile Tissue Found in Octopus 'Fingers'   (Site not responding. Last check: 2007-10-13)
Erections are key to sexual reproduction in the males of many, but not all, vertebrate species but it was not known how broadly this particular adaptation was used.
Thompson had noticed that, under a microscope, the tissue at the end of the copulatory tentacle looked like mammalian erectile tissue.
"Erectile tissue might be a way to have a large copulatory organ when it is in use," Thompson said.
www.planetark.org /dailynewsstory.cfm/newsid/22781/story.htm   (597 words)

 Peyronie's Disease
The tissue that is scarred can not expand, thus at the time of erection, the penis becomes curved and deformed.
The problem of artificial material or cadaveric tissue is that they are usually not stretchable and the penile needs to stretch at the time of erection.
Since the erectile body is a blood-containing structure, a vein would be most suitable as the grafting tissue.
medicine.creighton.edu /Surgery/Urology/pydis.htm   (2280 words)

 Prostate Cancer Treatment with IMRT Reduces Irradiation of Erectile Tissue at Fox Chase Cancer Center   (Site not responding. Last check: 2007-10-13)
Now, a new study conducted at Fox Chase Cancer Center shows that the radiation delivered to erectile tissues can be reduced by as much as 60% without compromising treatment when using a highly sophisticated technology called IMRT.
This maximizes the dose to the tumor where it is thickest and minimizes the dose near healthy tissue, enabling oncologists to administer high doses of radiation with extreme precision to the targeted prostate while sparing surrounding healthy organs.
"Erectile tissues commonly receive significant doses of radiation during treatment for prostate cancer because they lie very close to the prostate," said Mark Buyyounouski, MD, MS, a resident at Fox Chase and co-author of the study.
www.fccc.edu /news/2003/IMRT-Erectile-Tissue-Study-04-25-2003.html   (491 words)

 Erectile dysfunction: an early marker for hypertension? A longitudinal study in spontaneously hypertensive rats -- ...
ICP is the difference between ICP in the flaccid state and ICP during the plateau phase of the erectile response, and MAP is the mean arterial pressure during the tumescence phase (n = 12/age/strain).
as 12 wk of age in the erectile tissue (Fig.
the aortic tissue (6 vs. 12 and 12 vs. 24 wk of age, respectively).
ajpregu.physiology.org /cgi/content/full/288/1/R276   (4544 words)

 Erectile tissue found in octopus 'fingers' - www.smh.com.au
Erectile tissue found in octopus 'fingers' - www.smh.com.au
Researchers said yesterday they had found erectile tissue in the tentacle of a male octopus, the first time such tissue has been seen in an invertebrate.
Thompson, who called the finding weird, said biologists have looked for erectile tissue in other molluscs but not found them.
www.smh.com.au /articles/2003/11/06/1068013324484.html   (393 words)

 Clinical Trial: Intensity-Modulated Radiation Therapy With or Without Decreased Radiation Dose to Erectile Tissue in ...
It is not yet known whether reducing the dose of radiation to erectile tissue will help prevent erectile dysfunction.
PURPOSE: This randomized phase III trial is studying intensity-modulated radiation therapy alone to see how well it works compared to intensity-modulated radiation therapy with reduced doses to erectile tissue in treating patients with stage II prostate cancer.
Compare erectile dysfunction in patients with stage T1b-T2c adenocarcinoma of the prostate after treatment with intensity-modulated radiotherapy with vs without dose sparing for erectile tissue.
clinicaltrials.gov /ct/show/NCT00084552   (544 words)

 Phosphodiesterase-5A dysregulation in penile erectile tissue is a mechanism of priapism -- Champion et al. 102 (5): ...
Phosphodiesterase-5A dysregulation in penile erectile tissue is a mechanism of priapism -- Champion et al.
Phosphodiesterase-5A dysregulation in penile erectile tissue is a mechanism of priapism
of PKG demonstrate an erectile dysfunction phenotype (4).
www.pnas.org /cgi/content/full/102/5/1661   (3224 words)

 Impotence (Erectile Dysfunction) - UMMC   (Site not responding. Last check: 2007-10-13)
Differentiating between Physical and Psychological Causes of Erectile Dysfunction
Common Medical Conditions That Contribute to Erectile Dysfunction
In one 1999 study, overall male satisfaction was 65%.
www.umm.edu /patiented/doc15full.html   (9346 words)

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