In Temporal Summation,a Single Presynaptic Neuron Stimulates the Creation of Action

question 4

Multiple Choice

In temporal summation,a single presynaptic neuron stimulates the creation of action potentials in a postsynaptic neuron when it

• A)stops firing long enough to allow the postsynaptic neuron to recover.
• B)fires at a fast enough rate that the sum of EPSPs in the postsynaptic neuron moves above threshold.
• C)fires at a steady rate that allows the postsynaptic neuron to return to resting potential.
• D)recruits other presynaptic neurons to begin to fire.
• E)runs out of neurotransmitter.

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Definitions:

Lipid Bilayer

A fundamental structure in cell membranes composed of two layers of lipid molecules, crucial for cellular integrity and function.

Hydrophobic

Describing molecules or parts of molecules that repel water, often nonpolar substances that do not mix well with water.

Hydrophilic

Describes molecules or substances that are attracted to water and can be dissolved in it, typically because of the presence of polar groups.

Phospholipids

A class of lipids that are a major component of all cell membranes, consisting of two fatty acids, a glycerol unit, and a phosphate group, playing key roles in cellular structures and functions.