Synapse

All the followings are structure of presynaptic neuron except

• Voltage-gated Ca2+ channel

• neurotransmitter

• synaptic vesicle

• Ligand-gated ion channel

What is the condition to trigger opening of voltage-gated Ca2+ channel?

• Action potential

• Depolarization of presynaptic membrane

• High concentration of Na+

• Strong stimulus

Name the structure that released the neurotransmitter

• Synaptic vacuole

• Synaptic vesicle

• Synaptic knob

• Synaptic membrane

What happens after ligand-gated ion channel open?

• Ca2+ diffuse into synaptic knob

• Ca2+ diffuse into postsynaptic neuron

• Na+ diffuse into the postsynaptic neuron

• Na+ diffuse into presynaptic neuron

What is the condition to generate action potential in postsynaptic neuron

• Repolarization is above threshold level

• Resting potential of postsynaptic membrane

• Depolarization reach -60 mV

• Depolarization is above threshold level

What is the term used when the depolarization occur in postsynaptic neuron?

• Excitatory presynaptic potential

• Excitatory postsynaptic potential

• Inhibitory postsynaptic potential

• Inhibitory postsynaptic potential