What is a verumontanum?

The verumontanum or seminal colliculus is the rounded eminence of the urethral crest within the posterior wall of the mid prostatic urethra. The prostatic utricle opens into it in the midline and the two ejaculatory ducts open just distal to the utricle.

What is the purpose of seminal colliculus?

The seminal colliculus (Latin colliculus seminalis), or verumontanum, of the prostatic urethra is a landmark distal to the entrance of the ejaculatory ducts (on both sides, corresponding vas deferens and seminal vesicle feed into corresponding ejaculatory duct).

What is prostatic urethra?

The prostatic urethra is the portion of the urethra that traverses the prostate. It originates in the region of the bladder neck, courses roughly 2.5 cm inferiorly, and terminates at the membranous urethra. The prostatic urethra is surrounded by an inner circular layer and an outer longitudinal layer of smooth muscle.

What is the function of Verumontanum?

Urologists use the verumontanum as a surgical landmark, during transurethral resection for the prostate (TURP), to locate the urethral sphincter 2.

What is bladder neck?

The bladder neck is a group of muscles that connect the bladder to the urethra. The muscles tighten to hold urine in the bladder, and relax to release it through the urethra. Urinary problems occur when abnormalities block the bladder neck and prevent it from opening completely during urination.

What is the arterial blood supply of the prostate?

The arterial supply to the prostate is primarily from the inferior vesical artery, which originates from the anterior division of the internal iliac (hypogastric) artery. The inferior vesical artery then branches into 2 main arterial branches to feed the prostate.

What are the ejaculatory ducts?

The ejaculatory duct delivers sperm into the urethra, adding secretions and additives from the prostate necessary for sperm function, while providing an interface between the reproductive and urinary systems in men (see image below).

What is bladder neck Dyssynergia?

Detrusor bladder neck dyssynergia was defined where pressures were higher at the level of bladder neck than in the bladder during detrusor contraction.