PSYA01H3 Chapter Notes - Chapter 3: Neuroglia, Demyelinating Disease, Sensory Neuron
Document Summary
The electrical and chemical activities of neurons are the starting point of all behaviour, thought, and emotion. Neurons cells in the nervous systems that communicate with another to perform information processing tasks. 1800s scientists started studying the harder-to observe workings of the brain from the mechanics of limbs, lungs and livers. Philosopher"s thought of the brain an enchanted loom that mysteriously wove a tapestry of behaviour. Many scientist confirmed this the brain looked as though it were composed of a continuously connected lattice of fine threads one big woven web of material. Learned a new technique for staining electrons in the brain. The stain highlighted the appearance of entire cells, revealing that neurons come in different shapes and sizes. 1st to see that each neuron was composed of a body with many threads extending outward toward other neurons and that the threads of each neuron did not actually touch other neurons o.
