Intermediate Vas Deferens Quiz

Q1. What feature of the vas deferens wall helps propel sperm?

• A thick smooth muscle coat
• A wall composed entirely of epithelium
• A thick layer of skeletal cartilage
• A layer of adipose tissue only

Q2. Which three general smooth muscle orientations are present in the vas deferens?

• Three transverse skeletal muscle layers
• Only one circular smooth muscle layer
• Inner longitudinal, middle circular, and outer longitudinal
• Inner circular, middle skeletal, and outer cartilage

Q3. After passing through the deep inguinal ring, where does the vas deferens travel?

• Into the femoral canal
• Into the rectal lumen
• Into the pelvis toward the posterior bladder
• Into the abdominal aorta

Q4. What is the relationship of the vas deferens to the ureter near the bladder?

• They never approach one another
• The vas deferens crosses superior to the ureter
• The ureter crosses inside the vas deferens
• The vas deferens passes through the ureter

Q5. Where is the ampulla of the vas deferens located?

• Posterior to the bladder and medial to the seminal vesicle
• Anterior to the pubic symphysis
• Within the glans penis
• Inside the testis

Q6. What happens at the distal end of the ampulla?

• It joins the seminal vesicle duct
• It becomes the epididymal head
• It joins the ureter
• It opens directly into the bladder

Q7. Which arterial source supplies much of the vas deferens?

• Deferential artery from vesical arterial branches
• External carotid artery
• Renal artery only
• Middle cerebral artery

Q8. Which autonomic division strongly stimulates vas deferens contraction during emission?

• Sympathetic nervous system
• Parasympathetic fibers of the phrenic nerve
• Somatic optic pathways
• Auditory pathways

Q9. How does the vas deferens differ from the ureter?

• Both transport urine
• The vas deferens is an artery
• Both transport sperm
• The vas deferens transports sperm, while the ureter transports urine

Q10. Why is the lumen of the vas deferens relatively narrow compared with its wall thickness?

• The wall stores urine
• The duct is primarily a lymphatic vessel
• The lumen contains bone
• Its thick muscular wall is specialized for propulsion