Ch 45 - Figure 45.1 Figure 45.19 Tadpole Adult frog Ch 45...

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Figure 45.1
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Tadpole Adult frog Figure 45.19
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Ch. 45 Hormones and Endocrine System Chapter Objectives : Hormones and other signaling molecules bind to target receptors, triggering specific response pathways Endocrine Tissues and Organs Chemical Classes of Hormones Coordination of Endocrine and Nervous Systems in Vertebrates : Pituitary Gland
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Endocrine Regulation Endocrine system plays an important role in regulating many physiological processes like: Growth Development Reproduction Metabolic rate Fluid balance Blood homeostasis, etc 4
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Hormone Derived from the Greek word : “Hormao” = to arouse ; to excite. Chemical messengers that are released by cells into the interstitial space and carried by circulatory system or hemolymph to target cells where they produce a specific effect ”. 6
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Figure Signaling by pheromones.
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Endocrine and Exocrine Gland
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Types of Endocrine Signaling
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Major endocrine glands Hypothalamus Pineal gland Pituitary gland Thyroid gland Parathyroid glands (behind thyroid)
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