The difficulty of tracking down the true meaning of your specific knot is compounded by the fact every family could have a unique knot to identify that bloodline, leading to countless different heritage emblems. Also tracking down the meaning of one Celtic knot design also depended on the artist.
The basal ganglia is a collective group of structures in the brain. These include the striatum, (composed of the putamen and caudate nucleus), globus pallidus, substantia nigra, and the subthalamic nucleus. Along with other structures, the basal ganglia are part of a circuit that is integral to voluntary motor function.
morula-->blastula-->gastrula-->_____, vertebrate embryo in the stage during which the nervous system begins to develop