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Brain functioning

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Brain parts and functions are emphasized in a user friendly fashion. This posting also highlights the four major regions of the brain. A scenario is also included for analysis.

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Solution Summary

Besides the four major regions of the brain, this posting also explains overall brain parts and functions.

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Brain Response of Behavior

Part I - The brain works by using electrochemical transmission... the "chemical" aspect is a neurotransmitter (NT) which sends a signal from the presynaptic terminal to the receptors on the postsynaptic terminal. This is the beginning of the "electrical" aspect, an action potential.
NT's are the main method of information transfer from neuron to neuron in the brain. Physically, they are small chemical molecules that act as a key. These keys fit into a specific lock, the receptor. Each NT has its own specific set of receptors, usually there are several subtypes which creates diversity of action and complexity of behavior. So NT's are the signal from neuron to neuron. The beginning of this signal process is a sensory input (vision, touch, etc...). This causes a sensory neuron to create an action potential, the action potential acts to release NT's, NT's cross the synapse and interact with their receptors, these receptors take the chemical ...

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