Genitalia
Rectum
Topography
Sections
233
Female pelvic diaphragm
F a sc ia
o b tu ra to ria
Preputium clitoridis
Ostium urethrae externum
Gians clitoridis
Ostium vaginae;
Lig.
s a c ro tu b e ra le
Fascia
obturatoria
Rugae vaginales
Fascia perinei
[Fascia investiens
perinei superficialis]
Fossa ischioanalis
M. sphincter
ani externus
M levator ani
Anus
Corpus anococcygeum
[Lig. anococcygeum]
T u b e r
isc h iad ic u m
M. transversus
perinei
superficialis
M. gracilis
M. ischiocavernosus
M bulbo-
spongiosus
Raphe
perinei
Glandula vestibularis
major, (Ostium)*
M bulbo-
spongiosus
M. gluteus maximus
Mm transversi perinei superficialis et profundus
Os coccygis
Fig. 1173
Perineum, Perineum; pelvic diaphragm,
Diaphragma pelvis, and female external genitalia,
Organa genitalia feminina externa;
inferior view.
* Clinical term: BARTHOLIN'S gland
The vaginal and the anal orifices are located in close proximity.
During delivery the skin and muscles of the perineum can
rupture up to the sphincter muscles of the anus (I. - III. degree
perineal lacerations). These can be prevented by surgical
incisions directed either laterally or in the median plane
(perineal incision = lateral or medial episiotomy).
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