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[Arteries to the pituitary]

H Gibo¹, M Hokama, K Kyoshima

¹Department of Neurosurgery, School of Medicine, Shïnshu University.

Nihon Rinsho. Japanese Journal of Clinical Medicine

|October 1, 1993

Summary

The pituitary gland receives blood supply from superior and inferior arteries, forming rich vascular networks around the stalk and base. These arterial connections, including the circuminfundibular anastomosis, are crucial for pituitary function.

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Area of Science:

Neuroanatomy
Vascular Anatomy
Endocrinology

Context:

Detailed understanding of the pituitary gland's vascular supply is essential for neurosurgery and endocrinology.
Previous descriptions of pituitary vasculature have varied, necessitating a comprehensive review.

Purpose:

To delineate the arterial supply to the pituitary stalk and gland.
To describe the specific arteries contributing to the pituitary vascular network.

Summary:

The pituitary gland is supplied by three arteries from above: superior hypophyseal artery (internal carotid artery), infundibular artery (posterior communicating artery), and prechiasmal artery (ophthalmic artery).
Three arteries also supply the gland from the cavernous carotid artery: inferior hypophyseal artery, capsular artery, and artery of the inferior cavernous sinus.
These vessels form anastomoses, creating the circuminfundibular anastomosis around the stalk and the inferior hypophyseal arterial circle at the pituitary base.

Impact:

Provides a detailed anatomical map of pituitary vasculature.
Enhances understanding of blood flow dynamics to the pituitary gland.
Aids in surgical planning and understanding of pituitary pathologies.

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