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Name ___________________________Psychology Crash Course: Lesson Number 3The Chemical MindEVERYTHING PSYCHOLOGICAL IS BIOLOGICAL1.What is a neuron?A nerve cell; basic building blocks of the nervous system2.The basic parts of the neuron:a.Cell body- contains nucleus, cytoplasm, ribosomes, etcb.Dendrites-Receive info and conduct it toward cell body. Short to deliver messages to axonsc.Axon-neuron extension passes messages through its branches to other neurons or to muscles or glands. Long to deliver messages. Activate action potentiald.Myelin Sheath-layer of fatty tissue that insulates them and speeds their impulsese.Synapse- junction between the axon tip of the sending neuron and dendrites/cell body of receiving neuronf.Synaptic Cleft- gap between neuron at nerve synapses acrosswhich a nerve impulse is transmitted by a neurotransmitter3.What do neurotransmitters do?Remember, move, feel emotions4.There are two different types of neurons: excitatory and inhibitory neurons. What is the difference and give some examples.