PS263 Chapter Notes - Chapter 1: Radial Glial Cell, Camillo Golgi, Schwann Cell
Document Summary
The main founders of neuroscience: charles sherrington, santiago ramon y cajal, worked w/ camillo golgi to stain & examine nerve cells, only view few nerves at a time, discovered that nerve cells are separate, not one large structure. Variations among neurons: neurons vary in size, shape, & fxn, shape determines its connection w/ other cells & therefore its function. Glia: perform many functions, glue that holds neurons together, more glia than neurons in the cerebral cortex, the brain has several types of glia, astrocytes, star shaped, wrap around synapses of related axons, shields the connection of neurons. Chicken pocks may come back as shingles: how does it work, barrier keeps out useful chemical as well as harmful ones, the brain uses active transport to utilize energy to pump chemicals from the blood to the brain. Nourishment of vertebrate neurons: depend entirely on glucose, the only molecule that passes the blood-brain barrier in large quantities, requires thiamine to utilize glucose.
