Endocrine and nervous system

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Endocrine and nervous system

  1. 1. Endocrine, Nerves and You
  2. 2. What is the Endocrine system?-The Endocrine system is comprised of variousglands that secrete hormones into the bloodstream which in turn affect tissues cells withreceptors for the specific hormone.-This process helps regulate, growth, responseto stress, water and mineral balance, andmetabolism.
  3. 3. What are the structures of the Endocrine system?• The Endocrine system is comprised of: – Pineal gland(body) – Hypothalamus – Thyroid – Parathyroid – Pituitary gland – Adrenal glands – Pancreas – Testes – Ovaries
  4. 4. Hormones Pineal gland(body)• Melatonin
  5. 5. Hormones Hypothalamus• Thyrotropin-releasing hormone• Dopamine• Growth hormone-releasing hormone• Somatostatin• Gonadotropin-releasing hormone• Oxytocin• Vasopressin (Antidiuretic hormone)
  6. 6. Hormones Pituitary• Anterior – Growth Hormone(somatotropin) – Thyroid-stimulating Hormone(thyrotropin) – Adrenocorticotropic hormone(corticotropin) – Follicle-stimulating hormone – Luteinizing hormone – Prolactin – Melanocytic-stimulating hormone
  7. 7. Hormones Pituitary cont.• Posterior – Oxytocin – Vasopressin(Antidiuretic hormone)
  8. 8. Hormones Thyroid• Triiodothyroxine(T3)• Tetraiodothyronine(Thyroxine/T4)• Calcitonin
  9. 9. Hormones Parathyroid• Parathyroid Hormone
  10. 10. Hormones Adrenal• Cortex – Glucocorticoids(primarily Cortisol) – Mineralcorticoids(primarily Aldosterone) – Androgens(DHEA and Testosterone) Medulla – Epinephrine(Adrenaline) – Norepinephrine(Noradrenaline) – Dopamine – Enkephalin
  11. 11. Hormones Pancreas• Insulin• Glucagon• Somatostatin• Pancreatic Polypeptide
  12. 12. Hormones Testes• Androgens(primarily Testosterone)• Estradiol• Inhibin
  13. 13. Hormones Ovaries• Progesterone• Androstenedione• Estrogens(primarily Estradiol)• Inhibin
  14. 14. The Nervous System
  15. 15. Central Nervous System(CNS)• Comprised of the Brain and Spinal Cord• The functional unit of the CNS is the Neuron• Neurons release neurotransmitters from the Axon to receiving Dendrites at the synaptic gap.• The Brain is essential in awareness, movements, sensations, thoughts, speech, and memory awareness, movements, sensations, thoughts, speech, and memory (some reflexes occur via the spinal cord pathways without brain involvement)
  16. 16. How do they interact????
  17. 17. • The Hypothalamus connects these two systems via the Pituitary gland by secreting Neurohormones that stimulate or inhibit the release of Pituitary hormones• Pituitary hormones stimulate the release of other hormones from other endocrine structures• Reproductive hormones affect the development of the nervous system.• Hormones provide feedback to the brain to affect neural processing.

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