The inferior hypophyseal artery is an artery supplying the [[neurohypophysis]] of the [[pituitary gland]]. It is a branch of the [[Internal carotid artery C4 segment]]. posterior lobe of pituitary: post-partum occlusion causes pituitary infarcts ([[Sheehan's syndrome]]), however, [[DI]] is rare because the [[stalk]] is spared