In insects such as Drosophila melanogaster, electrical synapses are abundant in the ventral nerve cord. Unlike a chemical synapse, the cytosols of pre- and postsynaptic cells in an electrical synapse are connected, allowing action potentials to spread rapidly and without delay. What junctional proteins in the flies are chiefly responsible for this unique feature of the electrical synapses?
A) Cadherins
B) Claudins
C) Connexins
D) Innexins
E) Integrins

Question

Quizplus · Accepted Answer

Gap junctions at electrical synapses allow action potentials to spread without delay. In invertebrates, they are made of innexin subunits.

In Insects Such as Drosophila Melanogaster, Electrical Synapses Are Abundant