Propagation of Action Potentials Practice Problems

Which of the following has large motor units?

Cardiac muscle cells can generate action potentials spontaneously without external nervous input. This is due to which of the following specialized cells?

Saltatory conduction along the myelinated axon is crucial for:

Which of the following statements about electrical synapses is true?

What causes the synaptic vesicles to move toward the presynaptic membrane?

When an action potential reaches the axon terminal, it depolarizes the membrane. As a result:

When a single presynaptic neuron synapses with multiple postsynaptic neurons allowing for signal amplification and the spread of information to multiple pathways, it is called:

What is the impact of excitatory postsynaptic potential on the neuron?

The combination of postsynaptic potentials taking place in a specific location but occurring at slightly different times is called:

Which of the following statements about inhibitory postsynaptic potential is true?

If an inhibitory input activates the postsynaptic neuron concurrently with an excitatory input, it could lead to:

Why is saltatory conduction of myelinated axons more energy efficient compared to non-myelinated ones?

Which of the following characteristics slows down the conduction velocity in nerve fibers?

Based on the relation between conducting velocity and diameter, nerve fibers are classified into three major groups: group A, group B, and group C. What is the function of Group A fibers?

In which of the following autoimmune disorders is the myelin sheath damaged, causing loss of muscle control?