Illustrated Encyclopedia of Human Anatomic Variation: Opus II: Cardiovascular System
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
|
Type |
% |
Components |
|
Type I |
1.5 |
Four lateral sacral arteries; S1, S2, S3, S4. |
|
Type II |
11.0 |
Three lateral sacral arteries; S1, S2 (S3, S4). |
|
Type III |
59.0 |
Two lateral sacral arteries; S1, (S2, S3, S4). |
|
Type IV |
26.0 |
One lateral sacral artery; (S1, S2, S3, S4). |
|
Type V |
2.5 |
Two lateral sacral arteries; (S1, S2), (S3, S4). |
Levi studied 87 subjects and reported 30 had a single lateral sacral artery, 48 had two lateral sacral arteries, and 9 had three lateral sacral arteries. He did not find four lateral sacral arteries.
Levi, 1902 a,b.
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