The brief delay in the transmission of an impulse through a synapse is called .........

$A$ synapse is formed by

$A$ diagram showing an axon terminal and a synapse is given. Identify correctly at least two of $A - D$.

Which of the following statements are correct regarding electrical synapses?
$i.$ At electrical synapses,the membranes of pre- and post-synaptic neurons are in very close proximity.
$ii.$ Electrical current can flow directly from one neuron into the other across these synapses.
$iii.$ Impulse transmission across an electrical synapse is very similar to impulse conduction along a single axon.
$iv.$ Electrical synapses transmit signals using neurotransmitters like acetylcholine.
$v.$ Electrical synapse transmission is very fast.
$vi.$ Electrical synapses are rare in our system.

Alzheimer's disease in humans is associated with the deficiency of

Which of the following inhibits the enzyme acetylcholinesterase?