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20 Cards in this Set
- Front
- Back
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A transmitter substance from the nervous system that causes muscle contraction
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acetylcholine
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Automatic; not needing conscious input
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autonomic
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Liquid surrounding the brain and spinal cord
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cerebrospinal fluid
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An enzyme which neutralizes acetylcholine at the synapse between muscle and nerve, thus stopping contraction
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cholinesterase
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Blow to the head that disrupts the function of the brain
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concussion
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Hormone secreted by the adrenal cortex which regulates metabolism, and balances salt and water within the body
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corticoid
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A graph showing the brain waves.
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electroencephalogram
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A brain problem that causes seizures
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epilepsy
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Collections of nerve cells
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ganglion, -a
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The hormone secreted by the pancreas which raises the blood sugar level
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glucagon
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The substance that sheaths myelinated nerves
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myelin
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Four small endocrine glands within the thyroid gland in the neck which produce PTH
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parathyroid gland
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(PTH). The hormone secreted by the parathyroid gland that regulates calcium metabolism
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parathyroid hormone
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Separation of charge in the neurons that prepares them for transmitting an impulse
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polarized
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One division of the autonomic nervous system
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parasympathetic
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The other division of the autonomic nervous system
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sympathetic
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The junction between two nerve cells
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synapse
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Part of the brain that transmits and modifies nervous impulses
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thalamus
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A gland in the neck region where thyroxine is produced
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thyroid gland
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A hormone that increases the metabolic rate
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thyroxine
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