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Bio notes 7 - Notes Biology 103 Dr Karen Bledsoe...

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Topic: Endocrine system Reading: Chapter 37 Main concepts : Hormones are a form of cellular communication. Some, such as prostaglandins, are for immediate cell-to- cell communication. Hormones produced by the endocrine system target multiple sites in the body, and generally travel through the bloodstream. Two major types of hormones: Protein hormones: interact with receptors on surface of target cells, and set off a series of reactions within the cell. Lipid hormones: usually enter the cell and are directly involved in activities. The hypothalamus is the master controller of the endocrine system Hypothalamus receives information from the thalamus about the state of the body. Hypothalamus signals the pituitary to send messages to other glands. Pituitary releases hormones that signal other endocrine glands to produce their hormones. Some pituitary hormones themselves have a direct effect. In addition to the endocrine glands, other organs produce some hormones: stomach, kidneys, heart, thymus gland, intestines.
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Bio notes 7 - Notes Biology 103 Dr Karen Bledsoe...

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