alpha motor neuronの例文

• This excitatory interneuron innervates the alpha motor neuron that controls the antagonist muscle.
• As a result, alpha motor neurons become hyperactive, and muscles constantly contract.
• An alpha motor neuron and the muscle fibers it innervates is a motor unit.
• These inhibitory neurotransmitters inhibit the alpha motor neurons.
• Degeneration of the alpha motor neurons is also caused by the exposure to heat and radiation.
• In essence the Renshaw cells regulate the firing of the alpha motor neuron leaving the ventral horn.
• Each alpha motor neuron and the extrafusal muscle fibers innervated by it make up a motor unit.
• Alpha motor neurons are located in a specific region of the spinal cord's gray matter.
• One branch innervates the alpha motor neuron that causes the homonymous muscle to contract, producing the reflex.
• It is expressed at high levels in gamma motor neurons, but very little in alpha motor neurons.
• It increases muscle tone by increasing the total responsiveness of alpha motor neurons from its Ia sensory input.
• This increases alpha motor neuron activity, causing the muscle fibers to contract and thus resist the stretching.
• This in turn can provide scientists a way of eliminating gamma motor neurons if alpha motor neurons are of interest.
• This leads to the stretching of muscle spindle, activation of alpha motor neurons and finally a partially contracted muscle.
• As a result of this reflex, activation of the Ib afferent causes the alpha motor neuron to become inhibited.
• At that location, the interneuron excites the alpha motor neurons that innervate the extensor muscles of the opposite leg.
• On the other hand, neuronal DNA binding protein NeuN, are present in significantly greater quantities in alpha motor neurons.
• Therefore, with the cerebellum the muscle tension is maintained via alpha motor neurons as well as the gamma motor neurons.
• Alpha motor neurons have A? axons, which are large-caliber, heavily myelinated fibers that conduct action potentials rapidly.
• A Renshaw cell may be supplied by more than one alpha motor neuron collateral and it may synapse on multiple motor neurons.