BIOL 300 Study Guide - Final Guide: Neural Tube, Trophoblast, Synaptogenesis
Document Summary
Neurulation: take a set of embryonic cells and they make the decision to become neurons; establishment of dorsal, hollow basic structure of the brain and spinal chord. Neurogenesis: precursors to get you those 100 billion+ neurons. Neuronal migration: movement of neurons to the right locations in the nervous system; takes quite a long time until birth. Synaptogenesis: formation of synapses between neurons; takes long time, till after birth. Re nement of synaptic connections: pruning of inappropriate synaptic connections to establish correct adult topographic pattern of connections; process of re nement of synaptic connections to get rid of the ones that aren"t appropriate and save the ones that are. Neuronal proliferation: the formation of large number of neurons in the central nervous system; very quick, in the rst trimester. You take a small number of cells from the placenta or derived cells and genetically test the embryo without taking cells out. (cells from the trophoblast)
