Endocrine%20System0 - Human Anatomy and Physiology 1110...

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Unformatted text preview: Human Anatomy and Physiology 1110 Endocrine System Endocrine System : Learning Objectives 1. List the major endocrine organs, and describe their body locations. 2. Describe how hormones are classified chemically. 3. Describe two major mechanisms by which hormones affect target tissues. 4. Explain how hormone release is regulated. 5. Describe structural and functional relationships between the hypothalamus and the pituitary gland. 6. List and describe the release and regulation of GnRH, LH, ADH, oxytocin, GH, PTH, thyroid hormones, adrenergics, insulin, and melatonin. Endocrine System : Historical Perspective Berthold (1849) Castrated roosters resulted in reduced sex drive and comb size. Reattachment of testes resulted in return of these male traits. acts upon the blood, and the blood acts upon the who Glands that secrete chemical signals ( hormones ) into circulatory system Hormone characteristics Produced in small quantities Secreted into intercellular space Transported some distance in circulatory system Acts on target tissues elsewhere in body Regulate activities of body structures Ligands : more general term for chemical signals Endocrine System : Overview Endocrine : amplitude modulated signals . Amount of hormone determines strength of signal Onset within minutes of secretion of hormone Nervous : frequency-modulated signals . Frequency of action potentials produced by neurons determines strength of signal....
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This note was uploaded on 04/15/2011 for the course BIOL 1110K taught by Professor Kylaross during the Fall '10 term at Georgia State University, Atlanta.

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Endocrine%20System0 - Human Anatomy and Physiology 1110...

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