The external sphincter muscle of urethra (or sphincter urethrae membranaceae) surrounds the whole length of the membranous portion of the urethra, and is enclosed in the fasciæ of the urogenital diaphragm. They arch across the front of the urethra and bulbourethral glands, pass around the urethra, and behind it unite with the muscle of the opposite side, by means of a tendinous raphé.
male inguinal canal +
male inguinal ring +
male paramesonephric duct +
male reproductive gland +
male reproductive organ +
male urethral meatus
mammalian vulva +
mesorchium
mesovarium
mons pubis
muscle layer of epididymis
muscle layer of infundibulum of uterine tube
muscle layer of oviduct
muscle layer of spongiose part of urethra
muscle tissue of prostate +
muscular coat of seminal vesicle
muscular coat of vas deferens
muscular layer of vagina
myometrium +
navicular fossa of spongiose part of urethra +
Nobelian rod
ovarian cortex
ovarian ligament
ovarian medulla
ovary stroma +
oviduct +
oviduct epithelium +
oviduct smooth muscle
ovipositor
ovisac
paradidymis
paraurethral duct +
paroophoron
pars convoluta of oviduct
pars recta
pearly penile papule
penile bulb artery
penile spine
penis epithelium +
peripheral zone of prostate
placenta +
placenta blood vessel +
placenta junctional zone
placenta labyrinth +
placental artery endothelium
placental membrane +
placentome of cotyledonary placenta +
prepuce +
prostate epithelium +
prostate gland stroma
prostate glandular acinus
prostatic capsule
raphe of penis
raphe of scrotum
reproductive gland +
reproductive organ +
reproductive system mucosa +
rete ovarii
rete testis
rugal fold of vagina
sac of scrotum
scrotum +
septum of scrotum
serosa of infundibulum of uterine tube
serosa of uterine tube
serosa of uterus +
skin of external genitalia +
skin of penis +
smooth muscle tissue layer of ejaculatory duct
spermathecum
spermatic cord +
spongiose part of urethra +
spongiotrophoblast layer
subdivision of oviduct +
submucosa of uterine tube
subserosa of uterine tube
supravaginal part of cervix
suspensory ligament of testis
testicular sheath
theca cell layer +
theca externa
theca interna
toxactinium
transition zone of prostate
tunica albuginea +
tunica vaginalis testis
uterine artery
uterine cervix +
uterine fat pad +
uterine horn +
uterine ligament
uterine wall +
uterus or analog
vagina orifice
vagina smooth muscle
vaginal hymen
vaginal sphincter
vaginal vein
vas deferens epithelium
vein of clitoris +
ventral marginal cartilage
wall of uterine tube
wall of vagina
Synonyms
Exact Synonyms:
external urethral sphincter of male urethra
;
male sphincter urethrae
;
male sphincter urethrae muscle
;
male urethral sphincter muscle
;
musculus sphincter urethrae externus (Urethra masculina)
;
musculus sphincter urethrae externus urethrae masculinae
;
musculus sphincter urethrae membranaceae