Endocrine+system++Part+I+Lectures+37-38+w11+_Compatibility+Mode_

Endocrine+system++Part+I+Lectures+37-38+w11+_Compatibility+Mode_

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Unformatted text preview: 1 The Endocrine System Part I: Introduction to the Endocrine System Lectures 37-38 Recommended reading: Sherwood 6 th edition Chapter 4 pp. 111-124 Sherwood 7 th edition Chapter 4 pp. 113-129 Sherwood 6 th edition Chapter 18 pp. 653-662 Sherwood 7 th edition Chapter 18 pp. 661-670 Topics to be covered in these lectures: General overview of endocrine cells and glands Types of intercellular communication Comparison of the nervous and endocrine systems Nervous system and endocrine system interactions Hydrophilic versus Lipophilic hormones Subclasses of hydrophilic and lipophilic hormones 1. Amino acid derivatives Amines Thyroid hormones 2. Peptide hormones 3. Steroid hormones Chemical properties of a hormone impacts storage, transport, metabolism, excretion, and mode of action at target cells 1. Secretion versus storage 2. Transport 3. Metabolism 4. Action of hormones at target cells: Properties of hormone receptors Membrane receptors: second messenger pathways Example: vasopressin receptors Steroid and thyroid hormones act via nuclear receptors One hormone can influence activity of another hormone How endocrine disorders arise 2 Fig. 4-20, p. 114 3 Hormones are secreted from individual cells within organs or cells organized into a distinct gland Overall functions of the endocrine system In concert with autonomic nervous system, control and integrate the digestion and absorption of food Regulate organic metabolism and H 2 O and electrolyte balance Induce adaptive changes to help body cope with stressful situations Promote smooth, sequential growth and development Regulate red blood cell production Control reproduction Fig. 18-1, p. 662 Comparison of the nervous and endocrine systems 4 The Nervous System and the Endocrine System Interact Extensively 1. Neurons secrete hormones (Neurohormones) 2. Secretion of hormones by some cells controlled by nervous system 3. Hormones can affect Birth of new neurons...
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This note was uploaded on 07/09/2011 for the course NPB 101 taught by Professor Fuller,charles/goldberg,jack during the Winter '08 term at UC Davis.

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Endocrine+system++Part+I+Lectures+37-38+w11+_Compatibility+Mode_

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