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  2. Prostate - Wikipedia

    en.wikipedia.org/wiki/Prostate

    The prostate is an accessory gland of the male reproductive system and a muscle-driven mechanical switch between urination and ejaculation. It is found in all male mammals. [1] It differs between species anatomically, chemically, and physiologically. Anatomically, the prostate is found below the bladder, with the urethra passing through

  3. Prostatic urethra - Wikipedia

    en.wikipedia.org/wiki/Prostatic_urethra

    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.

  4. Bladder - Wikipedia

    en.wikipedia.org/wiki/Bladder

    The neck of the bladder is the area at the base of the trigone that surrounds the internal urethral orifice that leads to the urethra. [5] In males, the neck of the urinary bladder is next to the prostate gland. The bladder has three openings. The two ureters enter the bladder at ureteric orifices, and the urethra enters at the trigone of the ...

  5. Urethral sphincters - Wikipedia

    en.wikipedia.org/wiki/Urethral_sphincters

    The female or male external sphincter muscle of urethra (sphincter urethrae): located in the deep perineal pouch, at the bladder's distal inferior end in females, and inferior to the prostate (at the level of the membranous urethra) in males. It is a secondary sphincter to control the flow of urine through the urethra.

  6. Ejaculatory duct - Wikipedia

    en.wikipedia.org/wiki/Ejaculatory_duct

    Seminal fluid continues down the ejaculatory duct into the prostate gland, where an alkaline prostatic fluid is added. [4] This addition provides the texture and odor associated with semen. [ 4 ] The alkalinity of the prostatic fluid serves to neutralize the acidity of the female vaginal tract in order to prolong the survival of sperm in this ...

  7. Urinary system - Wikipedia

    en.wikipedia.org/wiki/Urinary_system

    The anatomy of the human urinary system differs between males and females at the level of the urinary bladder. In males, the urethra begins at the internal urethral orifice in the trigone of the bladder, continues through the external urethral orifice, and then becomes the prostatic, membranous, bulbar, and penile urethra.