NURS 364 Lecture Notes - Lecture 9: Membrane Transport Protein, Prolactin, Blood Proteins
14 Dec 2017
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Document Summary
Autocrine: cell secretes messenger and gives itself its own message. Paracrine: one cell emits substance and cells near it get message. Endocrine: secreted by one cell or tissue and travel through blood to another tissue somewhere else and give signal to another tissue. A hormone is a specific messenger molecule synthesized and secreted directly into the bloodstream by a group of specialized cells called an endocrine gland. Hormones usually require a carrier protein (plasma protein) to be transported. Hypothalamus hormone through blood to anterior pituitary . Hypothalamic-releasing hormones and actions of anterior pituitary hormones. From the hypothalamus (releasing and inhibitory hormones) to anterior pituitary. Gnrh (lhrh) = gonadotropin-releasing hormone (luteinizing hormone-releasing hormone) Always in a state of flux never turns off just increases and decreases to maintain that balance. As one hormone causes its effect, that effect will then reduce the production of that hormone. Hormones --- often travel via protein in blood.
