neur 100 sp 25 final review

Front

What effect does myelin have on an action potential?

Back

speeds it up

Front

What channels open once Vm reaches threshold?

Back

VG Na+ channels

Front

What effect does an influx of Cl- have on the likelihood of a neuron to fire an action potential?

Back

decrease

Front

Which of the following best describes an inhibitory postsynaptic potential (IPSP)?
Options: A depolarization that brings the neuron closer to threshold, A hyperpolarization that makes the neuron less likely to fire, A rapid action potential, An opening of sodium channels

Back

A hyperpolarization that makes the neuron less likely to fire

Front

Which type of receptor has a slower but longer-lasting effect on the postsynaptic cell?

Back

Metabotropic

Front

Damage to the basal ganglia is most likely to affect:

Back

Motor control

Front

Which brain region is essential for forming new declarative memories?

Back

Hippocampus

Front

What color is Nissl stain? What does it stain for?

Back

Purple, cell bodies

Front

What is the function of astrocytes?

Back

Maintain the blood-brain barrier

Front

At resting potential, which direction would a positive ion move if its equilibrium potential is 30mV?

Back

In