- somatic motor neuron fate commitment
The commitment of unspecified motor neurons to specific motor neuron cell along the anterior-posterior axis of the spinal cord and their capacity to differentiate into specific motor neurons.
- lateral motor column neuron differentiation
The process in which differentiating motor neurons in the neural tube acquire the specialized structural and/or functional features of lateral motor column neurons. Lateral motor column neurons are generated only on limb levels and send axons into the limb mesenchyme. Differentiation includes the processes involved in commitment of a cell to a specific fate.
- gemmule
Spine-like process found on some neurons, e.g., periglomerular cells of olfactory cortex.
- C bouton
Synaptic bouton found in spinal cord on the soma and proximal dendrites of motor neurons.
- myelin sheath
An electrically insulating fatty layer that surrounds the axons of many neurons. It is an outgrowth of glial cells: Schwann cells supply the myelin for peripheral neurons while oligodendrocytes supply it to those of the central nervous system.