What is the trigone of the bladder bounded by?

a) top of fundus and uretal orifices
b) major and minor calyces
c) orifices of ejaculatory ducts and urethra
d) uretal and internal urethral orifices

I've been looking in my textbook and I've been googling but I really have no idea. Any thoughts?

Originally Posted by ginaj

What is the trigone of the bladder bounded by?

a) top of fundus and uretal orifices
b) major and minor calyces
c) orifices of ejaculatory ducts and urethra
d) uretal and internal urethral orifices

I've been looking in my textbook and I've been googling but I really have no idea. Any thoughts?

I'm pretty sure it's (d). The trigone is essentially that area in between where the 2 ureters enter the bladder and the internal part of the urethra exiting the bladder, so it's not a definitive structure, just a smoother area of the bladder wall.
Edit: It's the area shaded in yellow in this figure: http://www.ivy-rose.co.uk/HumanBody/... ra_Female.php

Thank you. I just got confused but what's a URETAL supposed to be? Is that a typo?

Originally Posted by ginaj

Thank you. I just got confused but what's a URETAL supposed to be? Is that a typo?

No problem . Nope it's not a typo, it's just a different way of describing the trigone's location. Uretal = related to the ureters entering the bladder compared to urethral= related to the urethra out of the bladder.

Thanks so much!

The answer is rebecca black

I'm only familiar with goat anatomy.

Really easy question, how do you not know this? hehe

p.s. When in doubt, google it