The cavernous artery effects tumescence of the corpus cavernosum and thus is principally responsible for erection. The cavernous artery gives off many helicine arteries, which supply the trabecular erectile tissue and the sinusoids.
These helicine arteries are contracted and tortuous in the flaccid state and become dilated and straight during erection.
[9] Venous drainage of the corpora originates in tiny venules that lead from the peripheral sinusoids immediately beneath the tunica albuginea. These venules travel buy generic viagra without a prescription in the trabeculae between the tunica and the peripheral sinusoids to form the subtunical venous plexus before exiting as the emissary veins (see the image below).
[9] Sexual behavior involves the participation of autonomic and somatic nerves and the integration of numerous spinal and supraspinal sites in the central nervous system (CNS). The penile portion of the process that leads to erections represents only a single component. The hypothalamic and limbic pathways play an important role in the integration and control of reproductive and sexual functions.
The medial preoptic center, paraventricular nucleus, and anterior hypothalamic regions modulate erections and coordinate autonomic events associated with sexual responses.
Afferent information is assessed in the forebrain and relayed to the hypothalamus.
The efferent pathways from the hypothalamus enter the medial forebrain bundle and project caudally near the lateral part of the substantia nigra into the midbrain tegmental region.
Several pathways have been described to explain how information travels from the hypothalamus to the sacral autonomic centers. One pathway travels from the dorsomedial hypothalamus through the dorsal and central gray matter, descends to the locus ceruleus, and projects ventrally in the mesencephalic reticular formation. Input from the brain is conveyed through the dorsal spinal columns to the thoracolumbar and sacral autonomic nuclei. The primary nerve fibers to the penis are from the dorsal nerve of the penis, a branch of the pudendal nerve. The cavernosal nerves are a part of the autonomic nervous system and incorporate both sympathetic and parasympathetic fibers.
They travel posterolaterally along the prostate and enter the corpora cavernosa and corpus spongiosum to regulate blood flow during erection and detumescence.
Only 10 percent of men seek treatment and many (50 percent) discontinue treatment once they start it because they are too embarrassed to discuss their sexual health issues with a doctor. Our urological specialists at University of Utah Health understand your sensitivities related to ED. We develop treatment plans customized for your needs to help you get your sexual function back.
An erection occurs when blood flows into the corpora cavernosa (erection bodies) and gets trapped there.
If the blood has problems getting to or staying in those erection bodies, you may have erectile dysfunction. There are many potential causes for erectile dysfunction, such as these conditions/circumstances: Vascular conditions: High blood pressure Elevated cholesterol Cardiovascular disease Diabetes Trauma: Spinal cord injury Pelvis injury Neurologic disease: Stroke Parkinson’s disease Alzheimer’s disease Radiation to the pelvis for cancer Endocrine: Hypogonadism (low testosterone) Hyperprolactinemia (high prolactin levels) Pelvis surgery: Radical prostatectomy (a surgical procedure for the partial or complete removal of the prostate) Surgeries for rectal cancer or bladder cancer Medication side effects: Antidepressants Antihypertensives (high blood pressure medicine) Antiandrogens (testosterone blockers) Antiarrhythmics (heart rhythm medicine) Alcohol Cigarette smoking Cocaine and marijuana. Half of men with diabetes will experience ED within 10 years of their diagnosis. High blood sugar levels can damage the nerves that control sexual stimulation.
They can also damage the blood vessels needed to provide adequate blood flow to the penis in order to have and maintain an erection.
While oral medications are a common first step for therapy, they only tend to work in about 50 percent of men with diabetes. Diabetic men are more likely to move on to other treatment options, such as the pump, penile injection therapy, and
When you have heart disease, or coronary artery disease (blocked blood vessels), it will affect the tiny arteries in your penis sooner. Many times, we will refer you to a cardiologist to determine if you have cardiovascular disease that is causing your ED.
Improving your heart health can help lower your risk for ED.
You can start by: increasing physical activity, quitting tobacco products, losing weight, and consuming a healthy, well-balanced diet. Erectile dysfunction is a potential complication following prostate
The nerves that control an erection lie very close to the prostate and may be injured during treatment. However, some men may regain their previous level of erectile function with nerve-sparing procedures.
But it may take up to a year while some men may never recover their ability to have a natural erection.
Radiation for prostate cancer can cause ED symptoms to appear gradually, usually within two to three years after treatment.
If you are experiencing ED after undergoing prostate cancer treatment, you can get a healthy sex life back.
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