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Definition
| chemical neurotransmitter |
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Definition
| deficient number of red blood cells or deficient hemoglobin |
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| nerve cell process that trasmitts impulses away from the cell body |
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| norepinephrime and epineohrine |
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Definition
| branching or treelike; a nerve cell process that transmits impulses toward the body |
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| literally "strong or hard mother" outermost layer of the meninges |
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| responding organ; for example voluntary and involuntary muscle; the heart , and glands |
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Definition
| chemical in central nervous system that influences pain perspective; a natural painkiller |
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Definition
| peptide chemical in the central nervous system that acts as a natural painkiller |
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| the changes produced by increased sympathic impluses allowing the body to deal with any type of stress. |
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| a region of gray nerve tissue |
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| supporting cells of the nervous tissue also called neuroglia |
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| abnormal accumulation of cerebrospinal fluid " water on the brain" |
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| nerves that conduct impluses from sensory neurons to motor neurons. |
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| a collection of various small regions of the brain that act together to produce emotion and emotional response sometimes called the emotional brain |
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| fluid containing membranes surrounding the brain and spinal chord |
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| one type of connective tissue found in the brain and spinal cord. |
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Definition
| transmits nerve impules from the brain and spinal cord to muscles and glandular epithelial tissues |
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| the most common primary disease of the central nervous system ; a myelin disorder |
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| lipoid substance found in the myelin sheath around some nerve fibers |
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Definition
| nerve cells; including its processes (axons and dendrites) |
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| chemicals by which neurons communicate |
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| indentations that are found adjacent Schwann cells |
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| hormone secreted by adrenal medulla; released by sympathetic nervous system |
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| a cell that holds nerve fibers together and produces the myelin sheath around axons in the CNS |
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| parasympathetic nervous system |
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Definition
| part of automatic nervous system; ganglia are connected to the brainstem and the sacral segments of the spinal cord; controls many visceral effectors under normal conditions |
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Definition
| the vascular innermost covering (meninx) of the brain: and spinal cord |
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Definition
| automatic neurons that conduct nerve impulses from a ganglion to cardic or smooth muscle or glandular epithelial tissue |
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Definition
| a neuron situated distal to a synapse |
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Definition
| automatic neurons that conduct nerve impulses between the spinal cord and the ganglion |
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Definition
| a neruon situated distal to a synapse |
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Definition
| a neuron situated proximal to a synapse |
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| peripheral beginning of a sensory neuron's dendrite |
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| allows an impulse to travel in only one direction |
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Definition
| when a nerve impulse encounters myelin and "jumps" from one node of Raviner to the next |
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Definition
| neutrons that transmit impulses to the spinal cord and the brain from all parts of the body |
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Definition
| a neruontransmitter that belongs to a group of compounds called catecholamines |
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Definition
| part of the automatic nervous system; ganglia are connected to the thoracic and lumbar regions of the spinal cord; functions as an emergency system |
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| junction between adjacent neurons |
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Definition
| the space between a synaptic knob and the plasma membrane of the postsynaptic neuron |
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