Threshold is of great significance in the physiology of neurons. What happens if threshold is not reached?

Schwann cells make up the __________.

Blocking potassium ion channels in a mammalian cell membrane would __________.

What is an increase in the magnitude of the membrane potential called?

A drug that causes potassium to leak out of a neuron, increasing the positive charge on the outside, would __________.

Which of the following is caused by the death of specific neurons in the brain that release dopamine?

Taking illegal amphetamines ("speed") can induce symptoms similar to which of the following?

Which of the following neurotransmitters is most closely associated with schizophrenia, addiction, and Parkinson's disease?

What happens when a resting neuron's membrane depolarizes?a. There is a net diffusion of Na+ out of the cell.b. The equilibrium potential for K+(EK) becomes more positive.c. The neuron's membrane voltage becomes more positive.d. The cell's inside is more negative than the outside.