File talk:Stage11 sem101.jpg
From Embryology
- roof plate - dorsal region
- alar plate - dorsal lateral region (sensory input fine touch, proprioception, and vibration)
- basal plate - ventral lateral region (motor output to skeletal muscle)
- floor plate - ventral region
- roof plate region - signals from surface ectoderm
- alar plate region - signals from surface ectoderm
- basal plate region - signals from the notochord and floor plate
- floor plate region - signals from the notochord