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Cards In This Set
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Chemical formed in one part of the body and carried by the blood to another part of the body where it can affect cellular activity.
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Hormone
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This gland is a small, cone-shaped structure forming the posterior region of the epithalamus.
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Pineal Gland
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The pineal gland is composed primarily of pinealocytes, which secrete ___________.
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Melatonin
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What is the general function of melatonin?
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Helps regulate the body's circadian rhythm
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Melatonin appears to affect the synthesis of a hypothalamic hormone ________-releasing hormone.
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Gonadotropin
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The small, brownish-red __________ glands are located on the posterior surface of the thyroid gland.
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Parathyroid
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What are the two different types of cells in the parathyroid glands?
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Chief cells and oxyphil cells
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The ____ cells of the parathyroid gland are the source of the parathyroid hormone (PTH) that is released in response to decresed blood calcium to return blood calcium to within normal homeostatic levels.
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Chief
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The chief cells are the source of ______ that is released in responce to decresed blood calcium to return blood calcium to within normal homeostatic levels.
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PTH (parathyroid hormone)
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What is released when blood calcium levels are low?
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PTH (parathyroid hormone)
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What are the major endocrine organs in the human body?
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Pituitary gland, pineal gland, thyroid gland, parathyroid gland and adrenal glands
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The _________ gland sits in the selaa turcica of the sphenoid bone.
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Pituitary gland
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This gland lies inferior to the hypothalamus and is small and slightly oval.
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Pituitary gland
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The posterior pituitary is composed of _____ tissue.
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Nervous
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The posterior pituitary is connected to the hypothalamus by the _____________.
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Infundibulum.
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