What does myelin do to a travelling pulse?

• Plugs leaks so it travels further
• Eats the pulse at once
• Turns it back to the tip

Two equal synapses fire, one near and one far. Which pushes more at the trigger zone?

• The far one
• The near one
• Both push exactly the same

The firing decision uses the sum of inputs at the trigger zone.

Circle one:   True   False

Each of two taps is too weak alone, but both land close together in time. What may happen?

• Nothing ever adds up
• Their sum may cross threshold
• The cell fires backwards

An axon grows thicker. What happens to a pulse?

• It fades faster in the wide core
• It stops at the first bend
• It spreads further with less resistance

A synapse moves nearer the trigger zone with the same strength. What changes?

• Its push at the zone grows
• Its push at the zone shrinks
• The threshold moves away

Removing myelin leaves signal range unchanged since the core is the same.

Circle one:   True   False

A student scores each synapse alone and predicts firing from the largest one. What is the flaw?

• Large taps count double
• Small taps never matter
• Firing follows the summed push, not the largest tap