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Endocrine System

Endocrine System. Endocrine System Overview. Physically disconnected Controls growth, development, environmental responses Glands: Major organs of the endocrine system makes hormones Hormones: chemical signals that move through blood Hormones attach to cell receptor

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Endocrine System

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  1. Endocrine System

  2. Endocrine System Overview • Physically disconnected • Controls growth, development, environmental responses • Glands: Major organs of the endocrine system • makes hormones • Hormones: chemical signals that move through blood • Hormones attach to cell receptor • Cause target cells produce proteins

  3. Steroid and Non-Steroid Hormones • Naturally produced by the body • Travel through blood • Attach to receptor of target cells • Target cell creates proteins

  4. 1988 Summer Olympics:Ben Johnson (Canada) vs. Carl Lewis (USA)

  5. YouTube clip: Endocrine system

  6. Major Glands • Glands create hormones (C) Hypothalamus • Stimulates the pituitary gland to release hormones • Helps controls growth, reproduction, body temp (B) Pituitary gland • Controls cell growth • Stimulates other glands (A) Thyroid gland • Regulates metabolism, growth, development (D) Thymus • Allows WBCs to mature to fight infection

  7. Major Glands (E) Adrenal Glands • Controls “fight or flight” response • Increases breathing, alertness, blood pressure (F) Pancreas • Controls glucose level in blood • Gonads: influence sexual development (H) Testes (males): produces testosterone (G) Ovaries: produces estrogen, progesterone

  8. cold hormone A hormone B hormone C

  9. Effects of testosterone

  10. hypothalamus Pituitary gland Thyroid thymus Adrenal glands pancreas ovaries testes

  11. Kobe Kuiz • What are glands and what do they release? • What do steroid and nonsteroid hormones direct cells to create? • Examine the diagram of the endocrine system on slide #9. Practice answering the 8 different glands. • Which gland…. • releases insulin to lower blood sugar levels? • increases your alertness and blood pressure? • helps your white blood cells mature? • is located atop your kidneys? • are found in your brain (two answers)? • is considered your body’s thermostat?

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