Genitalia
Rectum
Topography
Sections
Veins of the rectum
V. cava inferior
V. mesentenca
inferior
Vv. sigmoideae
Colon
sigmoideum
V glutea superior
V. iliaca interna
V. iliaca externa
V. iliaca
communis
V rectal is
superior
Canalis
obturatorius
Spina ischiadica
V. glutea inferior
V. obturatoria
V pudenda interna
V rectalis media
Rectum
Vv. rectales inferiores
M. obturatorius
internus
M. levator ani
Tuber ischiadicum
Anus
M. sphincter ani
externus
Fig. 1148
Rectal veins, Vv. rectales;
diagram with parts of the pelvis and the pelvic
diaphragm;
dorsal view.
There are numerous connections between the veins
draining into the hepatic portal vein (superior
rectal vein) and those draining into the inferior vena
cava (middle and inferior rectal veins). They form
the portocaval anastomoses, which are of particular
clinical importance.
1077. 1078
