Lecture 19 Hormones and Endocrine System

Lecture 19 Hormones and Endocrine System - Lecture 19:...

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BIOL 1104 Dr. Paula Lemons Lecture 19: Hormones and the Endocrine System
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Learning Objectives Be able to explain, generally but with examples, how the endocrine system controls animal physiology. Explain how calcitonin and parathyroid hormone regulate blood calcium levels (Figure 25.8 plus text). Explain how the hormones insulin and glucagon regulate the concentration of glucose in the blood (Figure 25.9 plus text). Explain how the hormone oxytocin stimulates milk release (powerpoint). Explain how anti-diuretic hormone regulates the kidneys and water reabsorption. Explain how the endocrine and nervous system work together in regulating animal physiology. Identify the major human endocrine glands. Describe the differences between a water-soluble and lipid- soluble hormone and how one hormone can have multiple effects. Use your knowledge of the endocrine system to come up with
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Hormones and Animal Physiology Work with one person sitting next to you to understand the role of hormones in blood calcium homeostasis. Find the scenario on powerpoint and/or in your textbook and read about it. Discuss the scenario with your partner to make sure you understand what is going on. Do this by putting it into your own words – both of you should take a turn. Be sure to discuss the role of feedback mechanisms. Be sure to use Figure 25.4 to note the location of the endocrine gland under consideration. Turn in your explanation before you leave today.
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LE 25-10 Parathyroid glands release parathyroid hormone (PTH) Stimulus: Falling blood Ca2 level (imbalance) Parathyroid gland Thyroid gland releases calcitonin Ca2 level Stimulus: Rising blood Ca2 level (imbalance) Calcitonin Ca2 level PTH Stimulates Ca2 release from bones
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Lecture 19 Hormones and Endocrine System - Lecture 19:...

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