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45-+Student+Packet+07+_color_ - Chapter 45- The Endocrine...

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1 Chapter 45- The Endocrine System Student Packet
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2 Basic Patterns of Endocrine Control: Mechanisms of Hormone Signaling (The Dreaded Chapter 11):
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3 One Chemical Signal Can Have Many Different Effects: Major Human Endocrine Glands:
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4 Posterior Pituitary Hormone Production and Release: Anterior Pituitary Hormone Production and Release:
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5 T3 and T4 Secretion and Regulation: Hormonal Control of Calcium Homeostasis:
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6 Maintenance of Glucose Homeostasis: Stress and the Adrenal Gland:
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7 Chapter 45- Key Points Student Misconceptions 1. Some students think of endocrine and nervous regulation as entirely separate control mechanisms. Emphasize to your students that these important systems work together to regulate a number of physiological processes, that some molecules function both as hormones in the endocrine system and as chemical messengers in the nervous system, and that the hypothalamus and pituitary gland serve to integrate the endocrine and nervous systems of vertebrates. 2. Students can be overwhelmed by the large number of human endocrine glands and hormones. Encourage your students to look for patterns in this information. Students should recognize the basic hormonal control pathways, similarities in means of regulation, and the various chemical classes of hormone. An Introduction to Regulatory Systems 1. Compare the response times of the two major systems of internal communication: the nervous system and the endocrine system. 2. Explain how neurosecretory cells, epinephrine, and control of day/night cycles illustrate the integration of the endocrine and nervous systems. 3. Describe the organization of a stimulus, receptor, control center, efferent signal, and effector in a simple endocrine pathway. 4. Describe an example of a negative feedback loop in an endocrine pathway involved in maintaining homeostasis. 5. Explain why the neurohormone pathway that regulates the release of milk by a nursing mother is an example of positive feedback. Chemical Signals and Their Modes of Action 1. List the three major classes of molecules that function as hormones in vertebrates. 2. Name the three key events involved in signaling by vertebrate hormones. 3. Explain what changes may be triggered by a signal transduction pathway initiated by the binding of a water-soluble hormone to a receptor in the plasma membrane of a target cell. 4.
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This note was uploaded on 04/30/2010 for the course BIOL 203 taught by Professor Hued during the Spring '10 term at Eastern Oregon.

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45-+Student+Packet+07+_color_ - Chapter 45- The Endocrine...

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