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Ahead of Print
ORIGINAL ARTICLES
Published online: 2020-07-29
Submitted: 2020-05-16
Accepted: 2020-07-11
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Anatomic characterization of the parietal branches arising from the internal iliac artery in the fetal pig (Sus scrofa domestica)

H. Anetai, K. Tokita, M. Sakamoto, S. Midorikawa-Anetai, R. Kojima
DOI: 10.5603/FM.a2020.0083
·
Pubmed: 32748947

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2020-07-29
Submitted: 2020-05-16
Accepted: 2020-07-11

Abstract

It is critical for surgeons to have a full understanding of the complex courses and ramifications of the human internal iliac artery and its parietal branches. Although numerous anatomical studies have been performed, not all variations at this site are currently understood. Toward this end, we characterized these blood vessels in fetal pigs to provide additional insight from a comparative anatomical perspective. Among our findings, we identified the internal iliac artery as a descending branch of the abdominal aorta. A very thick umbilical artery arose from the internal iliac artery. The superior gluteal, inferior gluteal, and internal pudendal arteries formed the common arterial trunk. Although the superior gluteal artery emerged from the common trunk from inside the pelvis, the inferior gluteal and internal pudendal arteries bifurcated at deep layer within the gluteus muscles after leaving pelvic cavity. We were unable to detect an obturator artery emerging from the internal iliac artery. A branch supplying the hip adductors was identified as arising from the inferior epigastric artery which itself was derived from the distal end of the external iliac artery. In conclusion, we identified the anatomic characteristics of the internal iliac artery and its parietal branches in the fetal pig. Our findings provide new insight into the comparative anatomy of the internal iliac artery and will promote understanding of related morphogenetic processes.

Abstract

It is critical for surgeons to have a full understanding of the complex courses and ramifications of the human internal iliac artery and its parietal branches. Although numerous anatomical studies have been performed, not all variations at this site are currently understood. Toward this end, we characterized these blood vessels in fetal pigs to provide additional insight from a comparative anatomical perspective. Among our findings, we identified the internal iliac artery as a descending branch of the abdominal aorta. A very thick umbilical artery arose from the internal iliac artery. The superior gluteal, inferior gluteal, and internal pudendal arteries formed the common arterial trunk. Although the superior gluteal artery emerged from the common trunk from inside the pelvis, the inferior gluteal and internal pudendal arteries bifurcated at deep layer within the gluteus muscles after leaving pelvic cavity. We were unable to detect an obturator artery emerging from the internal iliac artery. A branch supplying the hip adductors was identified as arising from the inferior epigastric artery which itself was derived from the distal end of the external iliac artery. In conclusion, we identified the anatomic characteristics of the internal iliac artery and its parietal branches in the fetal pig. Our findings provide new insight into the comparative anatomy of the internal iliac artery and will promote understanding of related morphogenetic processes.

Get Citation

Keywords

hypogastric artery, pelvic artery, gross anatomy, comparative anatomy, anatomical variation, domestic animal

About this article
Title

Anatomic characterization of the parietal branches arising from the internal iliac artery in the fetal pig (Sus scrofa domestica)

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2020-07-29

DOI

10.5603/FM.a2020.0083

Pubmed

32748947

Keywords

hypogastric artery
pelvic artery
gross anatomy
comparative anatomy
anatomical variation
domestic animal

Authors

H. Anetai
K. Tokita
M. Sakamoto
S. Midorikawa-Anetai
R. Kojima

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