PHGY 210 Lecture Notes - Autoimmune Thyroiditis, Euthyroid, Dwarfism
6 May 2013
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So the secreted substance is specifically binding the receptor and leading to self- signaling. Classical endocrine organs: brain, particularly hypothalamus, anterior and posterior pituitary, thyroid glands, parathyroid glands, parathyroid physiology is not the same as thyroid. Week 1: they are connected by the hypothalamic- hypophyseal portal system. If produced by the hypothalamus and stimulates release of hormones = releasing factor. If the substance inhibits release of hormones = inhibiting factor. Instead, there are genes for enzymes necessary the biosynthesis of amines/steroids. Cholesterol differs from them because it has a long side- chain: cortisol is a glucocorticoid, while aldosterone is a mineralocorticoid. Week 1 steroids and their receptors under certain conditions. (ex. Week 1: they alter the rates of transcription of these genes. Signaling between hypothalamus and pituitary. These are gonadotropins (attracted to gonads) Therefore, dopamine can act as an endocrine substance and a neurotransmitter. Don"t want it circulating constantly.
