During a dissection, Arnie saw the ureters entering the lateral corners of the bladder but found the internal openings of the ureters in the trigone near the midline of the bladder. His observation necessarily means that
A) the ureters run medially for some distance within the posterior bladder wall.
B) this bladder had a congenital defect.
C) each ureter must have four distinct openings into the bladder.
D) the ureters and urethra are really the same tube.

Question

Quizplus · Accepted Answer

The ureters enter the bladder at the lateral corners and then run medially within the bladder wall to open into the trigone near the midline. This is a normal anatomical feature.

During a Dissection, Arnie Saw the Ureters Entering the Lateral