Advanced Ejaculatory Duct Quiz

Q1. What embryologic duct contributes to the male ductus deferens and therefore indirectly to the ejaculatory duct?

• Paramesonephric duct
• Mesonephric duct
• Neural tube
• Allantois only

Q2. How are the seminal vesicles developmentally related to the ejaculatory ducts?

• They develop from the ureters
• They arise from the paramesonephric ducts
• They form from the scrotal swellings
• They arise as mesonephric duct outgrowths whose ducts join the ductus deferens

Q3. Why can ejaculatory duct obstruction affect fertility?

• It can impair passage of sperm and seminal fluid into the urethra
• It prevents testosterone from entering arteries
• It blocks lymph drainage from the scrotum
• It stops urine formation in the kidneys

Q4. Why is the seminal colliculus an important landmark in ejaculatory duct anatomy?

• It forms the external urethral meatus
• It contains the ureteric openings
• It marks the region of the ejaculatory duct openings
• It separates the testes

Q5. What is the relationship between the ejaculatory ducts and the prostatic utricle?

• The ducts empty into the utricle
• The utricle drains into the seminal vesicles
• The ejaculatory ducts open on either side of the prostatic utricle
• The ducts lie inside the ureters

Q6. Which anatomical event directly creates an ejaculatory duct?

• Fusion of the two ureters
• Union of the ampulla of the ductus deferens with the seminal vesicle duct
• Fusion of the corpora cavernosa
• Union of the epididymis with the urethra

Q7. Why are ejaculatory ducts vulnerable to pathology within the prostate?

• They pass through prostatic tissue before reaching the urethra
• They travel inside the ureters
• They pass through the renal cortex
• They lie entirely within the scrotum

Q8. Which finding is anatomically consistent with complete bilateral ejaculatory duct obstruction?

• Reduced sperm delivery and reduced seminal vesicle contribution
• Absence of testicular arterial flow
• Failure of urine to enter the bladder
• Loss of renal filtration

Q9. Why does ejaculatory duct obstruction not necessarily stop testosterone production?

• Testosterone enters the blood from testicular endocrine cells independently of these ducts
• Testosterone reaches blood only through the urethra
• Testosterone is produced inside the ejaculatory ducts
• The ducts are endocrine glands

Q10. Which statement best integrates ejaculatory duct anatomy?

• A short paired duct formed by the ductus deferens and seminal vesicle duct that opens into the prostatic urethra
• A urinary duct carrying urine from kidney to bladder
• A lymphatic channel connecting the testis to inguinal nodes
• A gland that secretes testosterone into the urethra