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13 Cards in this Set
- Front
- Back
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controls language reception-a brain area involved in language comprehension and expression; usually in the left temporal lobe.
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Wernicke's area
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the lever of stimulation required to trigger a neural impulse
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threshold
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"morphine within"-natural, opiatelike neurotransmitters linked to pain control and to pleasure
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Endorphins
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the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands.
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axon
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tissue destruction. A brain lesion is a naturally or experimentally caused destruction of brain tissue
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lesion
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impairment of language, usually caused bu left hemisphere damage either to Broca's area (impairing speaking) or to Wernicke's area (impairing understanding)
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aphasia
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a neurotransmitter that enables learning and memory and also triggers muscle contraction
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acetylcholine
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a neural impulse; a breif electrical charge that travels down an axon. the action potential is generated by the movement of positively charged atoms in and out of channels in the axon's membrane
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action potential
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a pair of endocrine glands just above the kidneys. The adrenals secrete the hormones epinephrine (adrenaline) and norepinephrine (noradrenaline), which help to arouse the body in times of stress.
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adrenal glands
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two lima bean-sized neural clusters that are components of the limbic system and are linked to emotion
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amygdala
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areas of the cerebral cortex that are not involved in primary motor or sensory functions; rather, they are involved in higher mental functions such as learning, remembering, thinking, and speaking
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association areas
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the part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart) Its sympathetic division arouses; its parasympathetic division calms
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autonomic nervous system
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the base of the brainstem; controls heartbeat and breathing
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medulla
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