2010-Endo-01sv - PSL200Y and PSL201Y Endocrine 1:...

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PSL200Y and PSL201Y Endocrine 1: Introduction to hormones Lecture outline Cell-to-cell communication ndocrine system overview Endocrine system overview Hormone signalling Hydrophobic Hydrophillic extbook reading Textbook reading Chp 5: 127-138, 140-142 (3 rd 126-136, 139- 141)
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Cell-to-cell communication Direct Cell-t o -cell co m munic a Indirect via chemical messenger tion Figure 5.1
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Types of chemical messenger signalling Figure 5.2
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ervous system ndocrine system Figure 5.2 Nervous system Message = Neurotransmitters Travels in: Synapse Endocrine system Message = Hormones Travels in: Bloodstream Target: Neurons, muscles and glands Target: Most cell types
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Endocrine system Over v Communication system • Coordination system iew of t h Consists of e Endo c • Endocrine cells: secrete hormones •T a r get cells: have receptors for the hormone, rine sy s responsible for hormone function tem
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Cells that release hormones ) rouped into endocrine glands a) Grouped into endocrine glands b) Scattered in different organs Figure 6.1
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Regulation of hormone secretion Neurotransmitters Other hormones Metabolites (e.g. glucose, amino acids) Ions (e.g. calcium) - + Figure 5.2
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Endocrine system functions etabolism Metabolism • Growth and development • Reproduction • Responses to stress • Water and electrolyte balance
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Disorders of the endocrine system
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Case Study: Man with hyperglycemia Case S
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2010-Endo-01sv - PSL200Y and PSL201Y Endocrine 1:...

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