anterior horn cell

mo·tor neu·ron

a nerve cell in the spinal cord, rhombencephalon, or mesencephalon characterized by having an axon that leaves the central nervous system to establish a functional connection with an effector (muscle or glandular) tissue; somatic motor neuron directly synapse with striated muscle fibers by motor endplates; visceral motor neuron or autonomic motor neuron (preganglionic m. neurons), by contrast, innervate smooth muscle fibers or glands only by the intermediary of a second, peripheral, neuron (postganglionic m. neuron) located in an autonomic, or visceral motor, ganglion.
See also: motor endplate, autonomic (visceral motor) division of nervous system. Synonym(s): anterior horn cell, motoneuron

anterior horn cell

A somatic motor neuron that has its cell body in the ventral (anterior) horn of the gray matter of the spinal cord; its axon passes out through a ventral root and innervates skeletal muscle.See also: cell

单词	anterior horn cell
释义	DictionarySeemotor neuron anterior horn cell anterior horn cell [an¦tir·ē·ər ′hȯrn ‚sel] (neuroscience) A motor neuron in the anterior horn gray matter of the spinal cord; directly innervates skeletal muscle. anterior horn cell mo·tor neu·ron a nerve cell in the spinal cord, rhombencephalon, or mesencephalon characterized by having an axon that leaves the central nervous system to establish a functional connection with an effector (muscle or glandular) tissue; somatic motor neuron directly synapse with striated muscle fibers by motor endplates; visceral motor neuron or autonomic motor neuron (preganglionic m. neurons), by contrast, innervate smooth muscle fibers or glands only by the intermediary of a second, peripheral, neuron (postganglionic m. neuron) located in an autonomic, or visceral motor, ganglion. See also: motor endplate, autonomic (visceral motor) division of nervous system. Synonym(s): anterior horn cell, motoneuron anterior horn cell A somatic motor neuron that has its cell body in the ventral (anterior) horn of the gray matter of the spinal cord; its axon passes out through a ventral root and innervates skeletal muscle.See also: cell LegalSeeCellFinancialSeecellAcronymsSeeAHCThesaurusSeeanterior horn
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