PSYCH 1XX3 Chapter Notes - Chapter 5: Sodium Channel, Neuroglia, Schwann Cell
Document Summary
The brain is made up of approximately 100 billion neurons. A typical cortical neuron can have between 1 and 10,000 connections. Rene descartes: the mind was seen as a separating entity existing outside the biology, the physical brain was thought to serve a connection between the mind and the body. The cells of your body are specialized for different functions: secrete hormones, protective barriers, contract and form the muscles, neurons, specialized for communication. The 100 billion neurons in the brains are organized into signaling pathways to communicate via synaptic transmission. Unique structure makes is ideal for transmission. Neuron contains two distinctive zones: receptive zone: designed to receive signals from other neurons, composed of dendrites, transmission zone: pass signals on to other cells, made up of axon and terminal ends. The receptive zone of the neuron begins with the cell body. Cell body contains most of the vital organelles which keep the cell functioning.
