p15第一個菱形的前三行
是根據老師上課所述，語意可能不太清楚
另補充於下；
1.{wikipedia}
The primary glutamate receptor is specifically sensitive to N-Methyl-D-Aspartate (NMDA), which causes direct
action of the central pore of the receptor, an ion channel, to drive the
neuron to depolarize.
There are many specific subtypes of glutamate receptors, and it is customary
to refer to primary subtypes by a chemical which binds to it more selectively
than glutamate.
2.{Tachibana and Kaneko, 1988, Schwartzand Tachibana, 1990}
Though glutamate will bind onto all glutamate receptors, each receptor is
characterized by its sensitivity to specific glutamate analogues and
by the features of the glutamate-elicited current.
Glutamate receptor agonists and antagonists are structurally similar to
glutamate , which allows them to bind onto glutamate receptors.
These compounds are highly specific and, even in intact tissue, can be used in very low concentrations because they are poor
substrates for glutamate uptake systems
簡單的說，gluramate receptors中的ionotropic receptors，根據receptors的
selectivity以及那些selective agonists的作用，
可再分為三種subtypes；NMDA、KA、AMPA。
p16的圖片(A1 A2 B1 B2)都是指骨骼肌收縮的例子
請將最後一行的(見下圖B1 B2)移到倒數第五行
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