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Pituitary gland

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Pituitary gland

Located at the base of the brain, the pituitary gland is protected by a bony structure called the sella turcica (also known as turkish saddle) of the sphenoid bone.

Median sagittal through the hypophysis of an adult monkey. Semidiagrammatic.
Latin hypophysis, glandula pituitaria
Gray's subject #275 1275
Artery superior hypophyseal artery, infundibular artery, prechiasmal artery, inferior hypophyseal artery, capsular artery, artery of the inferior cavernous sinus[1]
Precursor neural and oral ectoderm, including Rathke's pouch
MeSH Pituitary+Gland
Dorlands/Elsevier Pituitary gland

In vertebrate anatomy the pituitary gland, or hypophysis, is an endocrine gland about the size of a pea and weighing 0.5 g (0.02 oz.) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity (sella turcica) covered by a dural fold (diaphragma sellae). The pituitary is functionally connected to the hypothalamus by the median eminence via a small tube called the infundibular stem (Pituitary stalk). The pituitary fossa, in which the pituitary gland sits, is situated in the sphenoid bone in the middle cranial fossa at the base of the brain. The pituitary gland secretes nine hormones that regulate homeostasis.

There is one. It is near the base of the brain.

There are two, liver and the kidneys