NEUR3002 MCQs

Question 1

When mapping out a connectome, how does the presence of chemical versus electrical synapses affect network connectivity?

Answer 1

Chemical synapses are unidirectional; electrical synapses are bidirectional

Question 2

There are several different lipophilic chemical dyes (compounds) that can be used to trace neuronal morphology. But there is one major limitation with most of these compounds, namely that they do not what?

Answer 2

do not typically label across chemical synapses

Question 3

The majority of neurons display one of three basic cell morphologies: Bipolar, multipolar, and unipolar. Unipolar neurons present a challenge for many connectome mapping approaches because?

Answer 3

their cell body is often separated from the axon and dendrites

Question 4

When mapping out connectomes, identifying which neuronal projections are dendrites vs axons can be challenging, because both types of neurites can be quite elaborate, and many tracing techniques do not distinguish between these two types of projections. However, determining which projections are axons vs dendrites is quite important for network analysis because

Answer 4

dendrites receive information while axons send information