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The ______system generally provides precise, rapid, finely adjusted but short-lived regulation
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Nervous system
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The______system provides slower, more sustained control over more long-term processes.
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Endocrine system
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Are the endocrine and nervous systems interrelated?
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Yes
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Do the endocrine and nervous systems use the same chemical messengers?
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Yes
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Where do endocrine glands release their secretions?
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Internally into extracellular spaces around the cells. From there they can enter the blood stream.
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Which type of glands have ducts and which are ductless?
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Exocrine glands have ducts (eg. sweat and salivary glands) and endocrine glands are ductless
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What are the "classical" endocrine glands?
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The hypothalamus, pituitary, thyroids, parathyroids, adrenals, pancreas, and gonads.
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What are some of the non-classical endocrine glands?
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The gut, liver, kidneys, heart, thymus, brain, and pineal.
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True or False: The endocrine glands may contain one or more secretory cell types, each of which may secrete one or more hormones?
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True
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In what arrangement may the secretory cells be?
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Clumps, cords, vesicles, or scattered throughout a tissue
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Do endocrines work on near or distant target organs?
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Distant organs
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What is the definition of a paracrine?
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A hormone that is released into the extracellular space, rather than general circulation, that will act on neighboring cells
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How do neurocrines work and where are they released from?
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They are released from neural tissues into synaptic spaces and act directly on neighboring nerve or muscle cells
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A single chemical substance can act as a chemical message in an_________way
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In an endocrine, neuroendocrine, paracrine or neurocrine way
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Hormone ________a reaction rather than________a reaction
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Hormones alter the rate of a reaction rather than initiate a reaction (they rarely initiate a rxn)
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