PSYB65H3 Chapter 13: PSYB65-Chapter 13 Notes
Document Summary
S will develop into various types of nervous system cells (pluripotent) N day 24: neural plate turns into a grove then become a neural tube, different sections of the tube become various parts of the nervous system. S interior surface of tube=ventricles and central canal. N proliferation jcell division resulting in new neurons. N day 40: 3 prominent bumps: forebrain, midbrain and hindbrain. N cells migrate from the interior ventricular zone to their final location by following certain types of glia. N 2nd month: telencephalon undergoes tremendous growth. N the deepest layer of neurons develop first. N cell differentiation begins as the neurons form axons and dendrites and is complete at birth. N spina bifida: spinal cord defect, not fatal but can be severe. N anencephaly: fatal failure of rostral part of neural plate to fuse, characterized by an absence of cerebral hemispheres. N synaptogenesis: production of new synapses, shortly before birth-2 years old, synapse formation begins rapid growth.
