Its size and shape are like an inverted chestnut, the upper part is attached to the bladder, the lower part is attached to the urogenital septum, the front part is next to the pubic symphysis of men, and the back part is next to the rectum, and the male urethra passes through the middle of the prostate.
The largest parenchymal organ in the accessory gland of male genitalia. It consists of prostate tissue and muscle tissue.
/iknow-pic.cdn.bcebos.com/267F9E2F07082838F85CCDF DB699A9014D08F182 "target =" _ blank "title =" "class =" ikqb _ img _ alink ". /iknow-pic . cdn . BCE Bos . com/267 f 9 e 2 f 07082838 f 85 CCD fdb 699 a 90 14d 08 f 182？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ 267 F9 e2f 07082838 f 85 CCD fdb 699 a 90 14d 08 f 182 "/>；
Extended data:
Tissue structure of prostate;
1 is composed of 30 ~ 50 polycystic glands, which flow into 15 ~ 30 ducts, opening in urethra respectively. Connective tissue and smooth muscle form the prostate capsule and extend into the matrix of gland to separate and surround acinus and duct. The acinar cavity of the prostate is large, and many papillae or folds often form in the glandular epithelium, which extend into the glandular cavity, so the glandular cavity is very irregular.
2. There are different types of glandular epithelium, ranging from single-layer cubic, single-layer columnar to pseudo-stratified columnar, and their changes are related to androgen levels. There are abundant rough endoplasmic reticulum in the cytoplasm of acinar cells, developed Golgi complex in the supranuclear region and a large number of secretory granules at the top.
3. Epithelial cells have strong acid phosphatase activity, and there are often round or oval prostate clots in the glandular cavity, with a diameter of 0.2~2mm. Coagulated body is concentrated from secretion, which can be calcified, and the section is concentric lamellae. This structure increases with age.
/baike . Baidu . com/item/% E5 % 89% 8D % E5 % 88% 97% E8 % 85% BA/6 13689？ Fr = Aladdin "target =" _ blank "title =" Baidu Encyclopedia-Prostate "> Baidu Encyclopedia-Prostate