Hypothalamus and Pituitary Gland

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The hypothalamus has wide control over all body functions. There are 2 main ways that it exerts this control:

One of it's roles is the production and secretion of GnRH (gonadotropin-releasing hormone), beginning in puberty. Recalling our earlier review, we know that GnRH acts on the anterior pituitary, causing it to release FSH and LH. In this way, it initiates the menstrual cycle.

The pituitary gland, also known as the hypophysis, is a small gland connected to the hypothalamus by a stalk (called the infundibulum).

The pituitary has 2 major lobes: the posterior and anterior.

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The hypothalamus and the posterior lobe of the pituitary gland are made of the same tissue.


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