pituitary gland
DESCRIPTION
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PITUITARY GLAND BASIC SCIENCE
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Adenohypophysis (anterior lobe)
Comprises 75% of the total volume
Predominant blood supply Hypophyseal-portal system Hypothalamic releasing hormones
reach the pituitary by this pathway
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“Master gland"
Anterior pituitary controls the functions of other
endocrine glands
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Posterior lobe
Arises from a down growth of the hypothalamus
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Pituitary gland (hypophysis cerebri)
Weight - about 500 mgLies within the hypophyseal
fossa of the sphenoid
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What forms the roof of the sella?
Diaphragma sella Fold of dura Above the diaphragma sella lies the
optic chiasm
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