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

A change in the resting potential from -70 mV to -73 mV is called:

_____ is a neurological disorder that is linked to periods of excessive neural synchrony.

_____ is a disease that has been linked with the death of _____.

How do nerve impulses produce movement?

What processes participate in maintaining the resting potential?

When a substance moves from an area of high concentration to an area of low concentration, it is an example of a(n):

Alex is 53 years old and has had weakness in his throat and chest for a few months. Now he is also starting to have general weakness in his arms and legs. The weakness in his legs has gotten so bad that yesterday he fell down when walking across his living room. Alex appears to be showing early signs of:

Erica is an 18-year-old in her first year of university. One day while she was watching a video in class, Erica started to hear what she thought was music playing. Suddenly, she began shaking in her seat and fell to the floor. After the incident ended, one of her classmates helped her to the campus medical center, where she was later diagnosed as having:

_____ is often accompanied by drooping eyelids, difficulty swallowing, and general fatigue.

Because the giant axons of the squid are nearly _____ in diameter, they were used to record electrical activity in neurons for the first time.

The voltage of a neural membrane that is sufficient to cause an action potential is approximately _____; it is called a _____.

The neurotransmitter-activated ion channels on muscle end plates differ from other ion channels in that:

Positively charged ions are called _____, while negatively charged ions are called _____.

For an EPSP to cause another action potential, the stimulation must reach the _____, which is (are) rich in voltage-sensitive ion channels.

Sodium channels close when the membrane potential reaches approximately:

Myasthenia gravis is a(n) _____ that _____.

Autoimmune diseases are illnesses resulting from:

What is significant about the giant axon of the squid?

_____ is the term used to denote reverse movement of the action potential into the dendrites.

The volt is a unit of: