PSY290H1 Chapter Notes - Chapter 9: Radial Glial Cell, Neural Tube, Neural Groove
Document Summary
The brain is plastic (changeable), not static as many individuals believe. The process of neurodevelopment begins with a single fertilized egg cell and ends with a functional adult brain. Starts with a zygote single cell formed by the amalgamation of an ovum and sperm. Developing neurons accomplish these things in five phases: Induction of the neural plate: neural proliferation, migration and aggregation, axon growth and synapse formation, neuron death and synapse rearragement. A fertilized egg is totipotent cell has the ability to develop into any class of cell in the body: after 4 days the cells lose their totipotency and begin to specialize. At this stage, developing cells have the ability to develop into many classes of body cells and are said to be pluripotent. Eventually, new cells can develop into different cells of only one class which are said to be multipotent. Most developing cells will eventually become unipotent develop into only one type of cell.
