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
What is the primary source of resting membrane potential?
K+
Na+
Cl-
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
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