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Inferior hypophyseal arterial circle

The inferior hypophyseal arterial circle, also known as the inferior capsular arterial rete, is an anastamotic arterial network formed around the base of the pituitary gland by branches from three vessels, themselves branches off the cavernous carotid artery. They are:

  • inferior hypophyseal artery (from the meningohypophyseal trunk)
  • capsular artery
  • artery of the inferior cavernous sinus

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