Introduction of prostate

　　Prostate is the male sex organ-specific. Prostate, such as chestnuts, bottom up, and bladder with paste, pointed down, arrived in the urogenital diaphragm, paste in front of symphysis pubis, followed according to the rectum, prostate enlargement, when it is, do digital rectal examination, prostate tactile back. The middle of the prostate gland through the urethra, it can be said that the resection of the prostate hold missing you so, prostate disease, voiding the first affected. The prostate is very rare in the human body with inside and outside of the dual function of gland secretion. As an exocrine gland, prostate secretion about two milliliters per day prostatic fluid, constitute the main component of semen; as endocrine gland, the hormone secretion of the prostate known as "prostaglandins."

　　The prostate is not a browser on the substantive Palace, by the prostatic tissue and muscle tissue. Prostate top diameter of about 4cm, vertical diameter of about 3cm, diameter of about 2cm. There coated fascia sheath, called the prostate capsule. Between the prostate capsule and prostatic venous plexus. Prostate secretion is a major component of semen.

　　The prostate was a little flat before and after the chestnut-shaped prostate called at the end of the top wide, adjacent to the bladder neck. The lower end of taper, is located in the urogenital septum, referred to as prostate sharp. Between the end part with a sharp body known as the prostate. The back of the body than the flat line in the middle of a shallow vertical line, known as benign prostatic groove. At the end of the male urethra in the glands near the leading edge of prostate Department penetration by the substance of the front gland from prostate sharp piercing. Near the end of the post-edge, a pair of ejaculatory duct penetrated through the prostate, transurethral resection of prostate openings in the Department of the essence of the posterior wall of the mound. Prostate stem the excretory duct openings of the posterior wall of the Department of transurethral resection of prostate. Prostate General leaf divided into five: the former leaves, middle leaves and both sides of the leaf after. The mid-wedge was located between the urethra and the ejaculatory duct. After 40 years of age, hypertrophy of the middle variable, convex top of the bladder up to the bladder down significantly uplift and oppression caused by urethral dysuria.

　　Bladder and prostate is located between the primordial germ diaphragm. At the end of the prostate and bladder neck, seminal vesicles and vas deferens ampulla adjacent. Pubic symphysis in front to the rear for the rectal ampulla. Digital rectal examination can hit the back of the prostate to diagnose prostate hypertrophy, such as whether, touched up and ampulla vas deferens and seminal vesicle. Prostate very small children, and the rapid growth of the Department of mature gland. Old age, prostate atrophy degradation. Within the connective tissue such as glandular hyperplasia, then the formation of prostatic hyperplasia.

　　Surface layer of capsule. Its more elastic fibers and smooth muscle, these components can be into the gland to form the prostate stents, the substance of the prostate by 30 to 50 vesicular gland complex control the composition, a total of 15 to 30 openings in the urethral catheter precision on both sides of the mound, according to the distribution of glands, can be divided into the mucosa, submucosal glands and the main gland.

　　Structural characteristics: (1) for single-layer epithelial acinar cubic, single-layer columnar or pseudostratified columnar, (2) different patterns, irregular gland cavity (3) more interstitial, with the exception of connective tissue, the rich in elastic fibers and smooth muscle. (4) acinar common solidification body cavity, the secretions of epithelial cells by enrichment.

　　Function: involved in the secretion of semen, by the secretion of androgen regulation and control activities.
　　1. Location and is located adjacent to the prostate and bladder neck between the urogenital diaphragm. The upper end of leniency for the prostate, bladder neck and adjacent to, the front has urethral penetration, rear left and right forward under the ejaculatory duct penetration; bottom taper tip for the prostate, and urogenital diaphragm downward contact on both sides of bypass levator prostate, urethra and out from the apex. Between the tip and at the end of the prostate body, do you have in front of the back and outer side. Pubic ligament in front of the prostate to prostate and suprapubic sheath surface connected basin. Behind the flat, the middle of a shallow longitudinal, said groove prostate through the rectum and the bladder separated from the adjacent rectum ampulla. Digital rectal examination, the move may be palpable prostate size, shape, hardness and prostate ditch.

　　2. Lobulated prostate usually divided into five leaves: that is, before the leaves, the middle and left posterior lobe, right lobe. Before the leaves very small, located in front of urethra, no clinical significance. Was the mid-wedge, also known as Gap prostate, the urethra is located in the rear, front and left posterior lobe, between the right lobe, just in the ejaculatory duct into the urethra opening above. The elderly are often the mid-mast, which leaves up the development of hypertrophy, the urethral mucosa in the mouth behind the bulge, easily lead to dysuria. Ejaculatory duct is located in the posterior lobe, the middle and the left and right rear leaf, rare mast, but a good cancer site. Left and right lobe resection of the lateral wall close to, posterior lobe at the front side, left and right lobe on both sides of the mast can also be downloaded from oppression urethra, dysuria easily. Wrapped with the surface of the prostate in real terms in the inherent resilient thin film, between the sheath and the prostatic venous plexus, artery and nerve branches, dorsal venous plexus deep vein accept and transport support in line with the venous plexus of bladder, the bladder sinks vein into the iliac vein or its branches.