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Vascular segments in the human spleen.

C D Gupta, S C Gupta, A K Arora

Journal of Anatomy

|July 1, 1976

Summary

Human splenic arterial trees typically have two segments (superior and inferior) in 84% of cases, with three segments (superior, middle, and inferior) found in 16%. These arterial segments are demarcated by avascular planes.

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Area of Science:

Anatomy
Vascular anatomy
Human anatomy

Background:

The splenic artery is a major visceral artery supplying oxygenated blood to the spleen.
Understanding the segmental anatomy of the splenic artery is crucial for surgical procedures and radiological interventions involving the spleen.

Purpose of the Study:

To investigate and describe the segmental branching pattern of the human splenic arterial tree.
To identify the typical number and arrangement of splenic artery segments.

Main Methods:

Utilized corrosion casts of human splenic arterial trees to visualize the vascular architecture.
Analyzed the casts to determine the number and spatial organization of arterial segments.

Main Results:

The study revealed a consistent segmental structure in the human splenic arterial tree.
Eighty-four percent of cases exhibited two distinct segments: a superior and an inferior segment.
Sixteen percent of cases demonstrated three segments: a superior, a middle, and an inferior segment.
These identified segments were consistently separated by avascular planes.

Conclusions:

The human splenic arterial tree predominantly displays a two-segment structure (superior and inferior).
A three-segment variation (superior, middle, and inferior) is present in a smaller proportion of individuals.
Avascular planes serve as reliable anatomical landmarks separating these splenic arterial segments.

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