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Good Links PowerPoint Presentation

Good Links

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Good Links

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  1. Good Links • http://health.howstuffworks.com/human-body/systems/endocrine/adam-200091.htm • http://www.youtube.com/watch?v=8fh2HmdxQjQ • http://www.youtube.com/watch?v=1IQQPtyE7Lc&feature=related

  2. Just the Facts • The endocrine and nervous system act individually and together in regulating an animal’s physiology • Endocrine system- all the hormone secreting cells and tissues. • Ductless • Hormones – chemical signals that cause a response in a target cell • Controlled by positive and negative feedback • Exocrine glands – ducted glands • Sweat • Oil

  3. Hormones bind to: • Cell-surface receptors and a signal transduction pathway is triggered. • Intracellular receptors- lipid soluble, steroid hormones use this method – bind to a receptor that acts as a transcription factor and causes a gene to be expressed

  4. Hypothalamus and pituitary integrate many functions of the vertebrate endocrine system. • Posterior pituitary • Oxytocin • ADH • Anterior Pituitary • FSH • LH • GH • Prolactin • TSH • ACTH

  5. Thyroid Gland • Triiodithyronine • Thyroxine • Calcitonin

  6. Parathyroid • Parathyroid Hormone

  7. Pancreas • Insulin- Beta Cells of the Islets of Langerhan • Glucagon – Alpha Cells of the Islets of Langerhan

  8. Adrenal Gland • Adrenal Medulla – secretes epinephrine and norepinephrine • Adrenal Cortex – secretes glucocorticoids • mineralocoroticoids

  9. Gonads • Testes – Androgens – Testosterone • Ovaries – Estrogens, and Progesterone

  10. Pineal • Melatonin – regulates body rhythms – light /dark cycles

  11. Abnormal HormonesToo much or Too little GH Giantism Dwarfism

  12. Thyroid gland Hyperthyroidism Hypothroidism

  13. Adrenal gland Addison’s Disease Hypoadrenalism Cushing’s Hyperadrenalism