Neurons (more specifically neuronal communication) allow us to know what we know about the world; they allow us to sense, think and behave. In short, neurons allow us to function. In Part 1, we learned how neurons allow us to acquire, process and respond to information.
Neurons, their connections and their signaling mechanisms are responsible for learning and memory. Following the brain hypothesis, which stated that the brain is responsible for all behavior, the neuron hypothesis stated that the basic unit of brain structure and function is the nerve cell (neuron and glia cells). If we are to understand the brain and its complex activities it is important to understand neurons as a basic unit.