PSYCO275 Lecture Notes - Metabotropic Receptor, Reuptake, Ligand-Gated Ion Channel
11 Mar 2014
School
Department
Course
Professor
Document Summary
Metabotropic receptor can release a g protein and the breakdown of the g protein can have many different effects. Metabotropic receptors could also cause the opening of an ion channel, however it will take longer than an ionotropic receptors. As long as nt is in the synapse, it is active . Reuptake recycling - there is transporters on the presynaptic neuron that pumps nt back into the presynaptic neurons back into vesicles to be used again. Enzymatic degradation enzymes break down the nt and change the overall shape so that the nt can"t bind with a receptor anymore. Acetylcholine has no reuptake process; it is only broken down via enzymatic degradation. Astrocytes appear to communicate and modulate neuronal activity. Some communication is through gap junctions between cells. These gap junctions are not specific to any ions, and they are generally large enough to allow anything through them.
