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  • 1. Chapter 39: Endocrine and Reproductive System
  • 2. Hormones and Glands
    • Hormones:
    • Chemicals that travel through the bloodstream sending messages
    • Affect cell activities
    • Last longer than nerve impulses
    • Glands:
    • Exocrine release secretions through ducts
    • Endocrine release secretions (hormones) into bloodstream
    Lily
  • 3. Hormone Action
    • Steroid Hormone
    • Can cross directly into cytoplasm
    • Lipids
    • Nonsteroid Hormone
    • Generally can’t pass through cell membranes
    Lily
  • 4. Prostaglandins
    • Produces small amounts of hormone like substances
    • Discovered first in prostate
    • Mortified fatty acids that produce a wide range of cells
    • Madeleine
  • 5. Control of the Endocrine System
    • Controlled by feedback methods that maintain homeostasis
    • The function of the thyroid gland is controlled by the anterior pituitary gland and the thyroid gland
    • Homeostatic control the materials broken down in the extracellular fluids and blood
    • Madeleine
  • 6. Complementary Hormone Action
    • Calcium:
    • Body regulates levels very carefully
    • One of the most important minerals in body
    • Without Calcium:
    • Blood can’t clot
    • Muscles can’t contract
    • Can’t transport across cell membrane
    Lily
  • 7. Pituitary Gland and Hypothalamus
    • Pituitary Gland:
    • Secretes 9 hormones that regulate lots of body functions
    • Controls actions of other endocrine glands
    • Hypothalamus
    • Controls pituitary gland’s secretions
    Lily
  • 8. Thyroid and Parathyroid Glands
    • Thyroid gland regulates body temperature
    • Makes thyroxin which contains amino acid tyrosine and mineral iodine
    • Hormones from both glands maintain homeostasis in blood calcium levels Madeleine
    Madeleine
  • 9. Adrenal Glands
    • Helps body with stress
    • Adrenal Cortex:
    • Produces hormone called corticosteriod
    • Adrenal Medulla:
    • Release of hormones controlled by the Sympathetic Nervous System
    Lily
  • 10. Pancreas
    • Glucagon and insulin excreted from the pancreas assist to maintain the level of glucose in the blood stable
    • Enzyme secretions break down food
    • When the pancreas doesn’t produce enough enough insulin diabetes can occur
    • Madeleine
  • 11. Reproductive Glands
    • Glands support two vital functions, production of gametes and secretion of sex hormones
    • Madeleine

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