The urinary bladder, opened anteriorly, and male urethra.

Translated by: Ronald A. Bergman, PhD and Adel K. Afifi, MD, MS
Peer Review Status: Internally Peer Reviewed )
urinary bladder, opened anteriorly, male 36-3_static.jpg
a) Bladder, top (vertex).
b) Bladder body.
c) Bladder, fundus.
d) Ureter.
e) Orifice of ureters.
f) Ureteric fold.
g) Trigone vesicae.
h) Bladder neck (with bladder sphincter and ostium of urethra).
i) Prostate.
k) Prostatic urethra with colliculus seminalis (and opening of ejaculatory duct and prostate duct openings).
l) Membranous urethra (isthmus).
m) Bulbourethral glands (s. glandula Cowperi).
n) Urethra, cavernous portion.
o) Corpus cavernosus urethrae.
p) Corpus cavernosus penis.
q) Glans penis.
r) Urethrae, fossa terminalis (s. navicular fossa or fossa of Morgagnii).
s) Uretheral cutaneous ostium.