Brain structural subdivisions

Glutamate or a structurally-similar chemical is an excitatory neurotransmitter in many areas of the brain. EAA receptors are generally divided into N-methyl-D-aspartate, quisqualate and kainate receptors, named for agonists that bind to each type of receptor. Further subdivision of classes is currently underway. Stimulation of EAA receptors increases cation conductance, leading to depolarization, or stimulates phosphatidyl inositol turnover. 

---