HTHSCI 1H06 Lecture Notes - Lecture 5: Cortisol, Acromegaly, Domperidone
10 Feb 2015
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Document Summary
Made of two very distinctive areas sits in the sphenoid in the hyophyseal fossa: forms turk"s saddle with tuberculum sellae in front and dorsal sellae behind behind and below optic chiasm. Anterior pituitary arises from an outgrowth of the ectoderm of the roof of the mouth it is sometimes called adenohypophysis because it is more of a gland that makes its own hormones and releases them. Posterior pituitary arises from an outgrowth of ectoderm at the base of the hypothalamus in your brain called the neurohypophysis because it arises from neurological tissue. Embryonic development start with a mouth cavity ectoderm (2 layers: fold in to make brain and mouth. Mesenchyme (underdeveloped mesoderm: mesoderm: gives us muscle and bone neurohypopyseal bud forms an indent from brain side and makes the infundibulum (extension of the brain) Called supraoptic his because it sits onto op the optic chiasm: keeps you from peeing.
