The common iliac artery in the ground squirrel (Citellus citellus).
2013
The common iliac arteries (a. iliaca communis dextra et a. iliaca communis
sinistra) are the terminal branches of the abdominal aorta. The paired
external iliac artery (a. iliaca externa dextra et a. iliaca externa
sinistra) is a stronger branch of the paired common iliac artery. Before they
leave the abdominal cavity and continue as the femoral arteries (a. femoralis
dextra et a. femoralis sinistra) each external iliac artery forms the
following branches: 1. The internal pudendal artery (a. pudenda interna)
which, with its branches, supplies the tensor fasciae latae and quadriceps
muscles (a. circumflexa femoris lateralis), cranial region of the urinary
bladder, cranial end of the uterine horn in females, the deferent duct and
tail of the epididymis in males (a. umbilicalis) the rectum, the external
anal sphincter and perineum (a. rectalis caudalis) with blood. 2. The
obturator artery (a. obturatoria), which supplies both of the obturator
muscles, as well as the proximal end of the adductor muscle. 3. The
pudendoepigastric trunk (truncus pudendoepigastricus) is a short vessel,
which with its branches (a. pudenda externa, a. epigastrica caudalis et a.
urethrogenitalis) supplies the caudal end of the rectus abdominis muscle, tip
of the penis, preputium, superficial inguinal lymph nodes, scrotum in males
and inguinal mamma in females, transversus and internus abdominis muscles,
neck of the urinary bladder, urethra, vagina and vulva in females and
accessory glands in males. 4. Paired internal iliac arteries (a. iliaca
interna dextra et a. iliaca interna sinistra) are thinner branches than the
external iliac arteries. The internal iliac artery with its branches supplies
the cranial and caudal parts of the gluteal muscles (a. glutea cranialis et
a. glutea caudalis), as well as the muscles of the lateral side of the tail
(a. caudalis lateralis). [Projekat Ministarstva nauke Republike Srbije, br.
143018]
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