انا دورت على النت و لقيت ال MOA of strychnine كلاتى :
Mode of action Strychnine causes excitation of all parts of the central nervous system, It increases the level of neuronal excitability by interfering with inhibitory influences on the motor neurons. The site of action of strychnine is the postsynaptic membrane. The convulsant action of the substance is due to interference with the postsynaptic inhibition that is mediated by glycine. Glycine is an inhibitory transmitter to motor neurons and interneurons in the spinal cord. Strychnine acts as a selective competitive antagonist to block the inhibitory effects of glycine at the glycine receptors. Studies indicate that strychnine and glycine interact with the same receptor complex, although probably at different sites (Goodman & Gilman, 1985)
وسالت واحدة صاحبتى عنه امتحنت قالتلى انه :
inhibition of( glycine & inhibitory action of GABA in CNS specially in spinal cord)
و عن ال PTZ قالت انهم كتبوا CNS st و خلاص
و ال site of action of barbiturates قالت ال CNS و خلاص برده
هذا و الله اعلى و اعلم