Sympathetic nerve fibers originate in the ____________________ horn of the thoracic and lumbar regions of the spinal cord.
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Q58: Cardiac muscle,smooth muscle,most exocrine glands,some endocrine glands,and
Q59: Motor neurons are considered the final common
Q60: An antagonist binds with the receptor,preventing the
Q61: Skeletal muscle is innervated by the _
Q62: Motor neurons,whose axons constitute the somatic nervous
Q64: The parasympathetic system promotes _ bodily functions
Q65: Motor-neuron axon terminals release _,which brings about
Q66: Nicotinic receptors are found on the _
Q67: Parasympathetic preganglionic fibers are longer than sympathetic
Q68: The motor end-plate region undergoes a threshold
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