Excitatory post synaptic potential is: (A) Depolarisation of post synaptic membrane by opening of K+ channels, (B) Hyperpolarisation of post synaptic membrane by opening of Cl- channels, (C) Depolarisation of post synaptic membrane by opening of Ca2+ channels, (D) Hyperpolarisation of post synaptic membrane by opening of Na+ channel
Answer is C. EPSP: Depolarisation of post synaptic membrane by opening of Na+ or Ca2+ channels
IPSP : Hyperpolarisation of post synaptic membrane by opening of Cl- or K+ channels