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The arteries that supply the pituitary gland are the superior hypophyseal arteries and the inferior hypophyseal arteries.

The pituitary gland is primarily supplied with blood by two main arteries:

1. Superior Hypophyseal Artery: This artery arises from the internal carotid artery and supplies the upper part of the pituitary gland.

2. Inferior Hypophyseal Artery: This artery typically arises from the cavernous segment of the internal carotid artery and supplies the lower part of the pituitary gland.

These arteries provide the necessary blood flow to the pituitary gland, which is essential for its hormone-secreting functions.