Exam 2: Communication Within the Nervous System

While listening to drug users describe the subjective effects of cocaine,BJ took a few notes to himself to remember that cocaine's effects are due to blocking the:

The outflow of potassium ions during an action potential results in:

The effects of curare and myasthenia gravis are the same in symptoms as well as involving acetylcholine synapses.

The effect of acetylcholine on muscles can be prevented by ___.

At the last home football game,Joel started a taunting chant that slowly spread to more and more fans.Eventually,all those in the stadium picked up the chant and made a roar so deafening,the opposition had to call a timeout.What Joel and fellow fans performed is analogous to the process of ___ at axon hillocks.

Dendritic spines are places on axons where synapses occur.

___ would tend to move into the neuron based on both their electrostatic pressure and force of diffusion.

While wiping away a "milk moustache," Nathan thought that not only does milk do a body good,but ___ is necessary for ___.

A disease that destroys myelin is:

Spatial summation,by definition,can only occur on a multipolar neuron.

The change in a neuron's potential caused by the arrival of neurotransmitter is called:

The ___ is the neuron's means of transmitting information over long distances.

An excitatory synapse will produce hypopolarization potentials of as little as:

Transmitter substance is secreted from the axon terminals.

An IPSP will occur if:

The sodium-potassium pump accounts for ___ of the neuron's energy expenditure.

Describe some diseases that are a result of either a problem with myelination or a problem with synaptic function.

Next time you are enjoying your sushi,try to avoid thinking about the ___ diners who have died from eating fugu.

Which of the following statements about neuronal conduction in myelinated neurons is not correct?

The type of postsynaptic potential produced by a neurotransmitter depends on which neurotransmitter is released and: