motoneuron

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Related to Motoneurons: Motor nerves, somatic motor neuron

motoneuron

 [mo″to-noor´on]
a neuron having a motor function; an efferent neuron conveying motor impulses. Called also motor neuron.
lower motoneuron a peripheral neuron whose cell body lies in the ventral gray columns of the spinal cord and whose termination is in a skeletal muscle.
peripheral m's neurons in a peripheral reflex arc that receive impulses from interneurons and transmit them to voluntary muscles.
upper motoneuron a neuron in the cerebral cortex that conducts impulses from the motor cortex to a motor nucleus of one of the cerebral nerves or to a ventral gray column of the spinal cord.

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.

motoneuron

(mō′tə-no͝or′ŏn′, -nyo͝or′-)
n.
A motor neuron.

mo·tor neu·ron

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

mo·tor neu·ron

(mō'tŏr nūr'on)
A nerve cell in the spinal cord, rhombencephalon, or mesencephalon characterized by an axon that leaves the central nervous system to establish a functional connection with an effector (muscle or glandular) tissue.
Synonym(s): motoneuron, motoneurone.
References in periodicals archive ?
H reflex is homologous to the monosynaptic reflex in the spinal cord, (62) which enables us to investigate the motoneuron activity in the spinal cord in humans in an awake state.
These inputs, along with afferents from knee-joint ligaments and the knee joint proper, converge on the motoneuron pool in the spinal cord and inhibit motoneuron firing to the muscle tissue [1,3,4,5,26].
Neuromuscular junction formation between human stem-cell-derived motoneurons and rat skeletal muscle in a defined system.
It was demonstrated that the repetition of stimulations decreased the H-reflex amplitude [17] due to a smaller neurotransmitter amount available at the Ia afferent-alpha motoneuron synapse [16].
D'Ambrosi, "Ablation of P2X7 receptor exacerbates gliosis and motoneuron death in the SOD1-G93A mouse model of amyotrophic lateral sclerosis," Human Molecular Genetics, vol.
Thus, the CST ignores how the tremor input is distributed across the motoneurons innervating the muscle.
Sunyach et al., "Reduced calreticulin levels link endoplasmic reticulum stress and fas-triggered cell death in motoneurons vulnerable to ALS," Journal of Neuroscience, vol.
indirect pathways from the motor cortex to spinal motoneurons in the control of hand dexterity," Frontiers in Neurology, vol.
Previous study demonstrated that c-fos expression levels in alpha motoneurons were associated with the activity levels of their corresponding muscle [54].
Cervical effects on abducens motoneurons and their interaction with vestibulo ocular reflex.
Molecular mechanisms and neural pathways mediating the influence of interleukin-1 on the activity of neuroendocrine CRF motoneurons in the rat.