The pituitary gland is a small endocrine gland located at the base of the brain that regulates many biological processes through the secretion of hormones. It is separated into two lobes - the anterior lobe which secretes hormones that control other endocrine glands, and the posterior lobe which stores and releases hormones produced by the hypothalamus. The pituitary gland develops embryologically from two sources - the ectodermal stomodeum and the neuroectoderm of the diencephalon. Disorders can result from over or underproduction of pituitary hormones.

2. PITUITARY GLAND
 It regulates endocrine
gland that control most
of the biological
processes of the
organism (metabolism).
 Regulates various
processes by secreting
hormones
(hypothalamus)
secreting hormones
stimulating or inhibiting.
 It acts through the
circulatory system.
 Also called the pituitary
gland.

4. MORPHOLOGY
Located in marrow
cavity of the skull
base (silla turca).
Oval shape with a
diameter of 8 mm
anteroposterior,
transverse 12 mm
and 6 mm in the
vertical direction
(normal
conditions).
The gland is
20% larger in
women than
in men.
Separated into 2
parts: the
anterior lobe and
posterior lobe or
adenohypophysis
or
neurohypophysis.
Associated
hypothalamic
neuronal endings
and vascular
traveling within
the stalk or
infundibulum.

5. Embryological development
The origin of the pituitary gland is ectodermal, develops from two sources:

6.  Growth from the roof of ectodermal stomodeum, the pituitary
diverticulum.
 Growth neuroectoderm of the diencephalon, the diverticulum
neurohipofisiario.
adenohypophysis (glandular part) or anterior lobe arises from the oral
ectoderm.
 The neurohypophysis (nervous part) or posterior lobe originates from
neuroectoderm.

8. PITUITARY
Posterior pituitary or
neurohypophysis.
Stores and releases
hormones synthesized by
the hypothalamus
(oxytocin and
vasopressin).
Anterior pituitary or
adenohypophysis.
(Secretion of numerous
hormones).Hipófisis
intermedia.
Produce melanotropins.Intermediate pituitary.

10. Acromegaly overproduction growth hormone
Giantism. Overproduction. Growth hormone.
Deficiency in
growth hormone.
Low production. Growth hormone.
Syndrome of
inappropriate
secretion of
antidiuretic
hormone.
Overproduction. Vasopressin.
Sheehan
Syndrome.
Low production. Any pituitary
hormone.
Pituitary
adenoma.
Overproduction. Any pituitary
hormone.
Hypopituitarism. Low production. Any pituitary
hormone.