Prostate Gland: Anatomy And Histology

prostate anatomy

Common side effects of living without a prostate include ED and uncontrollable peeing. It runs posterolateral to the article source prostate with the cavernous nerves. This artery enters the prostate at right angles to supply the glandular tissue.

The superficial branch travels between the puboprostatic ligaments and lies on top of the prostate and bladder neck. The superficial branch is outside the anterior prostatic fascia in the retropubic fat and pierces the fascia to drain into the dorsal venous complex. The common trunk of the dorsal venous complex and the lateral venous plexuses are covered by the anterior prostatic fascia and the endopelvic fascia. The lateral plexuses travel posterolaterally and communicate with the pudendal, obturator, and vesical plexus. The rectovesical fascia is a connective tissue that is located between the anterior wall of the rectum and posterior aspect of the prostate.

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It is shaped like a rounded cone or a funnel with its base pointed superiorly toward the urinary bladder. The prostate surrounds the urethra as it exits the bladder and merges with the ductus deferens at the ejaculatory duct. The prostate receives sympathetic, parasympathetic and sensory innervation from the you can try here inferior hypogastric plexus. The smooth muscle of the prostate gland is innervated by sympathetic fibres, which activate during ejaculation. The pelvic plexus is located beside the rectum approximately 7 cm from the anal verge, with its midpoint located at the level of the tips of the seminal vesicles.

prostate anatomy

The prostate is surrounded by the puborectal portion of the levator ani. The seminal vesicles lie superior to the prostate under the base of the bladder and are approximately 6 cm in length. Each seminal vesicle joins its corresponding ductus deferens to form the ejaculatory duct before entering you can try here the prostate. The prostate develops from epithelial outgrowths form the prostatic segment of the urethra that grows into the surrounding mesenchyme. This outgrowth and branching start at week 10 during embryo growth; by week 12, there are 5 groups of tubules that form the lobes of the prostate.

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Benign prostatic hyperplasia, however, are more prominent in the transition zone. Subsequently, this will result in urinary retention which could result in bladder and kidney infection if not adequately treated. The presence of the prostatic urethra is also a key histological feature of the prostate. It has a horseshoe appearance (courtesy of the verumontanum), and epithelial projections thanks to the highly folded transitional epithelial layer. You can’t touch your prostate, but you can feel it from the outside of your body (externally) or through your rectum (internally).

The arterial supply to the prostate comes from the prostatic arteries, which are mainly derived from the internal iliac arteries. Some branches may also arise from the internal pudendal and middle rectal arteries. It is located in front of the rectum and just below the bladder, the organ that stores urine. It is about the size of a chestnut and somewhat conical in shape, and consists of a base, an apex, an anterior, a posterior and two lateral surfaces. Venous drainage of the prostate is via the prostatic venous plexus, draining into the internal iliac veins. However, the prostatic venous plexus also connects posteriorly by networks of veins, including the Batson venous plexus, to the internal vertebral venous plexus.

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