Chapter 2 - Electrical Signals of Nerve Cells

A detailed illustration of nerve cells demonstrating action potentials and ion channels, focusing on electrical signals and their mechanisms.

Nerve Signals Quiz

Test your understanding of the electrical signals in nerve cells with this comprehensive quiz. Dive into the mechanisms of action potentials, membrane potentials, and more!

This quiz covers:

Receptor and action potentials
Membrane permeability
Ion transport mechanisms

9 Questions2 MinutesCreated by StimulatingNeuron345

Receptor potentials are due to...

Activation of motor neurons

Activation of sensory receptors

Activation of action potential

Activation of medulla oblongota

True or False? Action potentials follow the "all-or-none" principle? (I.e. All action potentials are the same size)

True

False

Membrane potential is more negative is known as...

Depolarization

Re-Polarization

Hyperpolarization

Megapolarization

Membrane potential is more positive is known as...

Depolarization

Re-Polarization

Hyperpolarization

Megapolarization

True or False? The intensity of a stimulus (I.e. How hot a pan is that you touch) changes the frequency of action potential, not the strength of the action potential.

True

False

What is the role of active transporters?

Move ions with their concentration gradients

Transfer glial cells

Produce myelin sheath

Move ions against their concentration gradient

What allows only certain kinds of ions to cross the membrane in the direction of the concentration gradient?

Active Transporters

Ion Channels

Passive Conducers

Microglial cells

If K+ is 2x more permeable than Na+ and 6x more permeable than Cl-, what is the ratio to be used in the Goldman's Equation?

1K: 2Na: 6 Cl

3K: 4Na : 12 Cl

6K: 3Na: 2Cl

6K: 3Na: 1Cl

Chapter 2 - Electrical Signals of Nerve Cells

Nerve Signals Quiz

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