Exam 4: How Do Neurons Use Electrical Signals to Transmit Information 

The muscle end plate is activated by the neurotransmitter:

Tetraethylammonium (TEA):

Na⁺ and K⁺ channels on axons are:

Which of the following is NOT involved in producing the resting potential?

An electroencephalogram, or EEG, can theoretically be recorded by:

EPSPs are associated with:

Stimulation producing two EPSPs in quick succession illustrates:

What is the function of myelin? How does it influence the conduction of a nerve impulse?

Because of refractory periods, the maximum firing rate of a neuron is approximately _____ impulses per second.

Define EPSP and IPSP.

A brief depolarization of the neuronal membrane that makes it more likely that the neuron will fire an action potential is called:

Large protein anions are:

_____ produce(s) myelin in the peripheral nervous system, whereas _____ produce(s) myelin in the central nervous system.

Differentiate between diffusion and concentration gradient.

_____ channels are less sensitive than _____ channels, so during an action potential, they open more slowly but remain open longer.

Refractory periods are due to:

Which of the following channels does NOT underlie graded potentials?

Nerve impulse describes:

What is the difference between depolarization and hyperpolarization?

Describe the work of Luigi Galvani and Roberts Bartholow. How did they contribute to our knowledge of how the nervous system operates?