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The prostatic urethra, the widest and most dilatable part of the urethra canal, is about 3 cm long.. It runs almost vertically through the prostate from its base to its apex, lying nearer its anterior than its posterior surface; the form of the canal is spindle-shaped, being wider in the middle than at either extremity, and narrowest below, where it joins the membranous portion.
The prostate is the only male accessory gland that occurs in cetaceans, [68] consisting of diffuse urethral glands [69] surrounded by a very powerful compressor muscle. [70] The prostate gland originates with tissues in the urethral wall.
The prostatic utricle (Latin for "small pouch of the prostate") is a small indentation in the prostatic urethra, at the apex of the urethral crest, on the seminal colliculus (verumontanum), laterally flanked by openings of the ejaculatory ducts.
The prostate is a walnut-sized gland below the bladder, above the penis, and in front of the rectum. Its primary function is to create prostate fluid, which is a component of semen.
It opens at the apex/inferior angle of the trigone of the bladder, some 2-3 cm anteromedial to either ureteral orifice. [ 1 ] The mucous membrane immediately posterior to it presents a slight elevation in males - the uvula vesicae - caused by the middle lobe of the prostate .
The remainder of this part of the urogenital sinus forms the body of the bladder and part of the prostatic urethra. The apex of the bladder stretches and is connected to the umbilicus as a narrow canal. This canal is initially open, but later closes as the urachus goes on to definitively form the median umbilical ligament.
Prostate cancer is a major topic of ongoing research. From 2016 to 2020, over $1.26 billion was invested in prostate cancer research, representing around 5% of global cancer research funds. [122] This places prostate cancer 10th among 18 common cancer types in funding per cancer death, and 9th in funding per disability-adjusted life year lost ...
Digital rectal examination (DRE), also known as a prostate exam (Latin: palpatio per anum (PPA), lit. 'palpation through the anus'), is an internal examination of the rectum performed by a healthcare provider .