Male Pelvic Cavity Flashcards
Where is sperm produced/carried through?
Testis
Epididymis
What is included in male internal genitalia?
Testis Epididymis Ductus Deferens Seminal Glands Ejaculatory Ducts Prostate Gland Bulbourethral Glands
What is semen?
A mixture of secretions produced by testes, seminal glands, prostate gland, bulbourethral glands
What is the role of semen?
Vehicle for sperm transport
Role in activating sperms and providing them with nutrition
In the male pelvis, what crosses the ureter?
The vas deferens
Where is the seminal gland found?
Between the bladder and rectum
Where is the prostate gland found?
Inferior to the bladder
What is the internal urethral sphincter between?
The bladder and the prostate gland
Where is the external urethral sphincter?
Superficial to the prostate gland
What is the role of the internal urethral sphincter?
Protects backflow of semen
About how long is the male urethra?
20 cm
What are the 4 regions of the male urethra?
Pre-prostatic urethra
Prostatic urethra
Membranous urethra
Spongy urethra
Where is the pre-prostatic urethra?
Between the bladder and prostate gland
Where is the prostatic urethra?
Through the prostate gland
Where is the membranous urethra?
Superficial to the prostate gland; associated with the bulbourethral gland
Where is the spongy urethra?
In the penis
What does the seminal gland supply to semen?
Thick alkaline fluid with fructose (energy) for sperms and coagulating agent
What does the prostate gland supply to semen?
Thin opaque fluid plays a role in activating sperms
What does the bulbourethral gland supply to semen?
Lubricates the spongy urethra and neutralizes the acidity of residual urine in the urethra
Where do the male reproductive and urinary pathways merge?
At the prostatic urethra
What is the ejaculatory duct?
Union of ducts of seminal glands and vas deferens
Where is the ejactulatory duct relative to the prostate gland?
Posterior
What special features are found in the prostatic urethra?
Urethral Crest and Seminal Colliculus
Prostatic sinuses
Where are the prostatic sinuses relative to the urethral crest?
Lateral
What empties into the prostatic sinuses?
Prostatic ducts
What empties into the seminal colliculus?
Ejaculatory ducts
How many prostatic duct openings are found within the prostatic sinus?
20-30
Where do ejaculatory ducts converge to open on the seminal colliculus?
By tiny apertures on/near the opening of the prostatic utricle
What are the 3 impressions found on the seminal colliculus?
Utricle
2 Ejaculatory ducts
What is the utricle?
Embryonic utero-vaginal canal
Where does the inferior vesicle artery branch off of in males? Which region does it supply?
Internal pudendal artery
Bladder
