Imagine a cell membrane that is permeable to Na+ ions. The membrane potential is initially + 55 mV. The equilibrium potential for sodium is +66 mV. There is a higher concentration of Na+ ions outside than inside the cell.

Imagine a cell membrane that is permeable to K+ ions. The membrane potential is initially – 110 mV. The equilibrium potential for potassium is -80 mV. There is a higher concentration of K+ ions inside than inside the cell.

Of the choices provided, what the 4th step in the sequence of events that occur when you spin in a chair?

What number(s) represents  temporal summation?

Preganglionic neurons of the sympathetic and parasympathetic nervous divisions are myelinated, whereas the postganglionic neurons are unmyelinated. Which axons will propagate action potentials faster? Why?

During the depolarization  phase of an action potential, what is the state of various channels in the membrane?

Inattentional blindness refers to:

The heart of Aristotle’s logical system is the _____.

If the RT = 6.8 (total circuit resistance) kΩ and R1 = 10 kΩ (resistance in one branch) in a two-branch parallel circuit, what is the value of R2 (resistance in the other branch)?

A circuit with no available path for current to flow is a/an