Which of the following is a strong candidate to act as a retrograde messenger from the dendrite to the terminal button?
A) glutamate
B) nitric oxide
C) nitrous oxide
D) norepinephrine
E) NMDA
Question 2
Persistence of a long-term potentiation for more than an hour requires
A) insertion of GABA receptors into the postsynaptic membrane.
B) presynaptic inhibition.
C) increased synthesis of PKM-zeta within the postsynaptic dendrite.
D) formation of new axonal spines.
E) All of the above are correct.