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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
The Endocrine System
• The Endocrine System
visi...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
About this Chapter
• Expand on integration of ch...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Summary of the Endocrine System
Figure 7-2-1: AN...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Summary of the Endocrine System
Figure 7-2-2: AN...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Summary of the Endocrine System
Figure 7-2-3: AN...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Chemical Regulating Systems: Overview
• Pheromon...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Protein and Polypeptide Hormones:
Synthesis and ...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Surface receptor
• Hormone binds
• Transductio...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Made of 1-2 amino acids
• Receptors
• Surface
...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Amine Hormone Structures and Functions
Figure 7-...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• From cholesterol, lipophilic, enter target cel...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Steroid Hormones: Structure and Action
Figure 7-...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Steroid Hormones: Structure and Action
Figure 7-...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Stimulus
• Afferent signal
• Integration
• Eff...
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Endocrine Reflex Pathways: Overview
Figure 7-9: ...
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The endocrine system

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The endocrine system

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The endocrine system

  1. 1. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings The Endocrine System • The Endocrine System visit us www.dentaltutor.in
  2. 2. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings About this Chapter • Expand on integration of chemical and nervous coordination • Form and function of key endocrine glands • Classification, structure and synthesis of hormones • Pathways of nervous to endocrine regulation • How target cells/tissues are impacted • Some pathologies of the endocrine system visit us www.dentaltutor.in
  3. 3. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Summary of the Endocrine System Figure 7-2-1: ANATOMY SUMMARY: Hormones visit us www.dentaltutor.in
  4. 4. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Summary of the Endocrine System Figure 7-2-2: ANATOMY SUMMARY: Hormones visit us www.dentaltutor.in
  5. 5. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Summary of the Endocrine System Figure 7-2-3: ANATOMY SUMMARY: Hormones visit us www.dentaltutor.in
  6. 6. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Chemical Regulating Systems: Overview • Pheromones: organism to organism communication • Hormones: cell to cell communication molecules • Made in gland(s) or cells • Transported by blood • Distant target tissue receptors • Activates physiological response visit us www.dentaltutor.in
  7. 7. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Protein and Polypeptide Hormones: Synthesis and Release Figure 7-3: Peptide hormone synthesis, packaging, and release visit us www.dentaltutor.in
  8. 8. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings • Surface receptor • Hormone binds • Transduction • Enzyme activation • Open channels • Second messenger systems • Synthesis Protein and Polypeptide Hormone Receptors Figure 7-5: Membrane receptors for peptide hormones visit us www.dentaltutor.in
  9. 9. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings • Made of 1-2 amino acids • Receptors • Surface • Intracellular • Small size, OH group • Benzine ring • Examples • Thyroxin • Epinephrine Amine Hormone Structures and Functions visit us www.dentaltutor.in
  10. 10. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Amine Hormone Structures and Functions Figure 7-8: Tyrosine-derived amine hormones visit us www.dentaltutor.in
  11. 11. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings • From cholesterol, lipophilic, enter target cell, • Cytoplasmic or nuclear receptors (mostly) • Activate DNA for protein synthesis • Slower acting, longer half-life • Examples: cortisol, estrogen & testosterone Steroid Hormones: Structure and Action visit us www.dentaltutor.in
  12. 12. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Steroid Hormones: Structure and Action Figure 7-6: Steroid hormones are derived from cholesterolvisit us www.dentaltutor.in
  13. 13. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Steroid Hormones: Structure and Action Figure 7-7: Steroid hormone actionvisit us www.dentaltutor.in
  14. 14. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings • Stimulus • Afferent signal • Integration • Efferent signal (the hormone) • Physiological action • Negative feedback Endocrine Reflex Pathways: Overview visit us www.dentaltutor.in
  15. 15. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Endocrine Reflex Pathways: Overview Figure 7-9: Hormones may have multiple stimuli for their release visit us www.dentaltutor.in

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