PSY 2301 Lecture Notes - Lecture 11: Serotonergic, Dopaminergic, Cholinergic
16 Mar 2018
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Document Summary
Ach, ep, and ne are also neurotransmitters in the cns. Central and peripheral effects can be quite different. Even within cns (or pns) can have different effects. Chemical released by a neuron onto a target with an excitatory or inhibitory effect. Outside the cns, many of these chemicals circulate in the bloodstream as hormones. Hypothalamus pituitary gland hormones target organs and. Majority of synapses in the mammalian nervous system are chemical, but . Fused presynaptic and postsynaptic membrane that allow an action potential to pass directly from one neuron to the next. Chemical synapses allow more flexibility in neuron-to-neuron communication. Neurotransmitters are derived in two general ways. Building blocks from food are pumped into cell via transporters: protein molecules embedded within the cell membranes. According to instructions contained in the dna. At the terminal, the action potential opens voltage-sensitive calcium (ca++) channels. Ca++ enters the terminal and binds to the protein calmodulin forming a complex.
