The prostatic urethra (PRUR) (TS:28-28) is the sub-region of the urethra of male where the prostate glands enter the urethra. Cranially joined to the bladder and caudally joined to the pelvic urethra of male. Comprised of epithelium (subdivided into 3 layers and into dorsal and ventral), mesenchymal layer (subdivided into lamina propria, muscularis mucosa, submucosa), muscle layer (subdivided into smooth muscle and rhabdosphincter) and adventitia. Also contains vasculature and nerve of prostatic urethra. The verumontanum (the raised portion of the dorsal epithelium of prostatic urethra where the ejaculatory duct orifices enter the urethra) is also part of the prostatic urethra.