Chapter 41 Endocrine and Hormones

Chapter 41 Endocrine and Hormones - Miguel Alvarez LS2...

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Miguel Alvarez LS2 Tutor Winter 09 Week 5B Endocrine System I. Endocrine Cells a. Remember: they circulate their hormones via the bloodstream b. Many are found in glands. II. Hormonal Communication a. Hormones can target either a single or several receptors (like epinephrine) III. Hormones and receptors a. Water-soluble: can/cannot readily pass through membrane—receptors are outside/inside the cell. b. Lipid-soluble: can/cannot readily pass through membrane—receptors are outside/inside the cell. IV. Classification of steroid types: a. Peptide hormones : amino acid chains (in blood) i. water-soluble lipid-soluble both b. Steroid hormones : bound to carrier proteins in blood i. water-soluble lipid-soluble both c. Amine hormones : tyrosine derrivatives i. water-soluble lipid-soluble both 1. only thyroxine is lipid-soluble. V. Tropic Hormones a. Hormones that act on endocrine glands to secrete hormones. VI.
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This note was uploaded on 04/19/2011 for the course LS 2 taught by Professor Pires during the Spring '08 term at UCLA.

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Chapter 41 Endocrine and Hormones - Miguel Alvarez LS2...

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