Lachmans TEST REVIEW (PERSONAL Pelvis) (Part 2) Flashcards
(20 cards)
What are the three arteries supplying the testes?
Testicular artery (from abdominal aorta) – main supply
Artery of ductus deferens (from vesicle artery) – anastomoses at tail of epididymis
Cremasteric artery (from inferior epigastric artery) – supplies coverings and scrotal sac
What gland contributes 60% of semen volume and what does it secrete?
Seminal vesicles
Viscous fluid with fructose, prostaglandins, and proteins
How are the ejaculatory ducts formed and where do they empty?
Formed by union of ductus deferens and seminal vesicle duct
Empty into the prostatic urethra
What does the prostate gland contribute to semen?
Produces fluid that enhances sperm motility
What cells produce testosterone in the testes?
Interstitial (Leydig) cells
What are the three anatomical parts of the male urethra?
Prostatic urethra – passes through the prostate
Membranous urethra – passes through the urogenital diaphragm
Spongy urethra – passes through the bulb and corpus spongiosum of the peni
How is the male urethra divided clinically?
Posterior part: prostatic + membranous urethra
Anterior part: spongy urethra
What surrounds the prostatic urethra and what is its function?
Surrounded by the internal urethral sphincter (sympathetic innervation)
Prevents retrograde flow of semen into the bladder during ejaculation
What structures drain into the prostatic urethra?
Ejaculatory ducts (from ductus deferens + seminal vesicle)
Prostatic ducts (secreting prostatic fluid)
What forms the ejaculatory ducts?
Union of the ductus deferens and the duct of the seminal vesicle
What passes through the membranous urethra and what is its significance?
Passes through the urogenital diaphragm
Site of the external urethral sphincter (skeletal muscle, pudendal n. innervation)
What muscles form the urogenital diaphragm?
Deep transverse perineal muscle
Sphincter urethrae muscle
Where does the spongy urethra run?
Bulb of the penis, through the corpus spongiosum, ending at the external meatus
What are Cowper’s glands, and what do they do?
Two small glands located posterior/lateral to membranous urethra
Secrete mucosal fluid into the urethra for lubrication during ejaculation
Where does fertilization normally occur?
mpulla of the uterine tube, which is the widest portion of the tube.
What happens to the embryo during the first 6 days after fertilization?
Developing embryo migrates down the uterine tube towards the uterus, where implantation normally occurs.
What complication can occur if the embryo’s migration route is blocked by scar tissue?
A scar tissue from pelvic inflammatory disease blocks the route, the embryo may implant in the uterine tube instead of the uterus, causing an ectopic (tubal) pregnancy.
Where is the Uterus located?
In the pelvic cavity, within a fold of peritoneum (mesentery) elevated from the floor of the pelvis = broad ligament
The broad ligament divides the pelvic portion of the peritoneal cavity into the ?
Rectouterine pouch (behind) and the Vesicouterine pouch (in front)
What are the 4 parts of the uterine tube?
Infundibulum (contains fimbria – aid movement of the oocyte into the uterine tube)
ampulla (fertilization occurs here)
Isthmus
Uterine portion
