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Myers Psychology Ch2 Vocab Vocabulary

Myers Psychology Chapter 2 Vocabulary (6th Edition)

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Biological Psychology – Focuses on links between biology and behavior. Neuron – A nerve cell Dendrite – Branching extension, receives messages Axon – Extension of a neuron, sends messages Myelin Sheath – Helps protect and insulate Action potential – A neural impulse, electrical charge that travels down the axon. Threshold – the level of stimulation required to trigger a neural impulse. Synapse – The junction between the axon tip (send) and the dendrite (receive) Neurotransmitters – Chemical messengers that traverse the synaptic gaps between neurons. Acetylcholine – Triggers muscle contractions Endorphins – “Natural morphine”, Pain control and pleasure. Nervous system – Electrochemical communication system of the body
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