part of part_of develops from ectoderm nervous system central nervous system CNS The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain, spinal cord and spinal nerves. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord[GO]. basal nucleus of the amygdala basolateral nucleus of amygdala basolateral nucleus of the amygdala cerebrospinal axis neuraxis nucleus amygdalae basalis nucleus amygdaloideus basalis nucleus amygdaloideus basolateralis nucleus basalis amygdalae systema nervosum centrale ectoderm-derived structure organ system subdivision