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Study Time. Human Biology Flash cards Nervous System. Arrival of an action potential at an axon terminal results in the release of ________. The contraction of smooth and cardiac muscle is controlled by the ________ division of the peripheral nervous system. - PowerPoint PPT PresentationTRANSCRIPT
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Study Time
Human Biology Flash cards Nervous System
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Arrival of an action potential at an axon terminal results in the release of ________.
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The contraction of smooth and cardiac muscle is controlled by the ________ division of the peripheral nervous system
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For an action potential to be generated, a minimum membrane voltage, or a(n) ________ , must be reached.
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Shifting the membrane potential of a neuron from negative to positive, due to inward movement of sodium ions, is referred to as ________.
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In order for repolarization of a neuron to occur, ________ must be closed.
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Research involving graded potentials has shown that a neuron receiving many incoming signals from other neurons experiences a larger change in membrane potential than from one incoming impulse alone. This phenomenon is known as ________.
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The ________ controls many functions in the body, including regulating body temperature and hunger drive.
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Cells in nerve tissue that support and protect neurons are called ________ cells.
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Given a particular neuron, an action potential either occurs or does not occur, depending on the strength of the stimulus; therefore, the action potential is described as ________.
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When an action potential arrives at the axonal bulb, ________ channels open in the presynaptic membrane.
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Twelve pairs of ________ nerves carry nerve impulses from the brain to glands, muscles, head, neck, and abdominal and thoracic cavities.
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Cranial nerves and spinal nerves are part of the ________ nervous system.
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The neurotransmitter released by the postganglionic neurons of the parasympathetic nervous system is ________.
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Bacterial and viral infections of the brain are rare because of the protective nature of the ________.
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Since the central nervous system is so important to the proper functioning of the body, the brain is protected by the ________ and the spinal cord is protected by the ________.
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Removal of the ________ would prevent any type of decision making.
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The left and right cerebral hemispheres are interconnected by nerve tract network called the ________.
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Recordings of the brain's activities can be made using a(n) ________; this information is used to study the functioning of the brain.
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Short-term memory is associated with the ________, whereas long-term memory is associated with changes in the ________.
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transmit impulses away from the central nervous system
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transmit impulses within the central nervous system
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transmit impulses toward the central nervous system
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• A student noticed that every time he smelled a certain perfume in the hallway, it reminded him of his mother. This is due largely to the activity of the ___________.
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The ___________ period characteristic of neurons is important in ensuring that action potentials travel in only one direction.
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Conscious thought is associated with which one of the ______________
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Control of respiratory rate, heart rate, and blood pressure is integrated through the _________
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Regulation of the production of breast milk, carbohydrate metabolism, and temperature control are some of the functions of the
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The reticular formation is associated with
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• The central nervous system is enclosed by membranes or meninges called the