Exam 2: Computing With Neurons

Which of the following might cause a neuron to fire?

Consider an action potential. Write the letter (A - E) that corresponds to the best answer. -______ resting membrane potential

The movement of ions across a cell membrane that is permeable to those ions depends on

In your research, you label two proteins (P1 and P2), with fluorescent dyes and watch as they move the length of a cultured neuron toward the axon terminal. P1 moves very quickly relative to P2. You might conclude that

Regarding voltage-gated sodium channels:

What is NOT the result of a metabotropic receptor being activated?

A receptive field of a sensory neuron that responds to peripheral stimuli would best be described as

Which of the following is most critical in maintaining a neuron's resting membrane potential?

How are neurotransmitters removed from a synapse?

How does the sodium-potassium pump help to establish and maintain the resting membrane potential?

Paraphrase the idea of neuronal tuning in your own words. Give examples that describe what tuning would be for a sensory neuron that innervates the skin and a sensory neuron that innervates the tongue.

The movement of substances from the axon terminal to the cell body is known as ___________________ axoplasmic transport.

Each of the concepts listed below is most associated with EPSPs or IPSPs. Classify each by writing EPSP or IPSP on the line next to the statement. -__________ is generally observed when glutamate is the neurotransmitter

Consider an action potential. Write the letter (A - E) that corresponds to the best answer. -______ peak of action potential

Which of the following is true of myelin?

Synapses

Examine figure 2.9. In the text Predict how 2.9B might look if potassium was replaced by another positively charged ion that cannot cross the neuronal membrane?

What initiates an action potential?

The equilibrium potential (sometimes called the Nernst potential) describes

Create a drawing that compares two neurons, one with fast conduction velocity and one with slow conduction velocity. Indicate how the axon diameter and presence of absence of myelination influence nerve conduction velocity by changing the length constant, altering potassium leak, and altering membrane capacitance.