BISC208 Lecture Notes - Lecture 7: Anterior Pituitary, Posterior Pituitary, Autonomic Nervous System
16 May 2016
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Document Summary
Autonomic nervous system monitors small fluctuations in core body temperature. Initiate counter measures to prevent temperature fluctuations beyond a tightly controlled set point. Fever is an elevation of body temperature above the regulatory set-point. May slow oden the multiplication of some pathogens. Tropic: regulate the secretion of hormones by other endocrine glands. Neuroendocrine cells are highly specialized nerve-like cells that release hormones in response to a neurological or chemical signal. Secretes releasing and inhibiting hormones that regulate the anterior pituitary. Produces hormones that are secreted into the posterior pituitary. The hormones from the anterior pituitary (fsh, lh, tsh, acth, prolactin, and gh) are released under stimulation by releasing hormones from the hypothalamus. Key hormone: thyrotropin-releasing hormone- stimulates release of thyroid-stimulating hormone and prolactin from anterior pituitary. Hypothalamus releases trh which makes the pituitary to produce tsh which stimulates the thyroid to produce t3 and t4 (which are responsible for regulation of metabolism)
