Their study showed that by 21 days following unilateral sciatic nerve avulsion in adult rats, the number of large motoneurons
in the lumbar spinal cord was reduced by approximately 30 % (Martin et al., 1999).
In a review, Behm (2004) further explains that a preceding contraction could provide improved central adjustments via motoneuron
excitation from both supraspinal and afferent input.
(1971) Reciprocal group I inhibition on triceps surae motoneurons
Mechanism(s) responsible for incomplete voluntary muscle activation is uncertain, but joint afferent information altering motoneuron
drive at spinal or supraspinal levels may be principal causes.
project axons (long, slender projections that conduct electrical impulses away from the nerve cell body) through the micro-tunnels and form neuromuscular junctions with the myotubes.
(2014); (c) for the neuronal system, motoneurons
were differentiated (Guo et al., 2011) from a previously isolated human spinal cord stem cell (hSCSC) line; and (d) for the liver compartment, a cell line from a hepatocellular carcinoma HepG2/C3A (ATCC[R] CRL-10741) was used in the prototype system.
Sakamoto et al., "Reassessment of non-monosynaptic excitation from the motor cortex to motoneurons
in single motor units of the human biceps brachii," Frontiers in Human Neuroscience, vol.
Chipman et al., "Motoneurons
derived from induced pluripotent stem cells develop mature phenotypes typical of endogenous spinal motoneurons
," Journal of Neuroscience, vol.
 recently showed that MI induces a subliminal motor command that modulates the influence of the afferent input to motoneurons
at the spinal level, via primary afferent depolarizing interneurons.
Nistri, "Riluzole is a potent drug to protect neonatal rat hypoglossal motoneurons
in vitro from excitotoxicity due to glutamate uptake block," The European Journal of Neuroscience, vol.
The central nervous system causes movement by modulating the firing patterns of the motoneurons
that innervate task-relevant muscles.