The speed of an action potential is determined by

The second energy level of an atom holds up to _____ electrons.  

Which of the structures connects the white matter tracts between the left and right hemispheres?

When hyperpolarization occurs, the transmembrane potential…

Neurons that have two axons extending off on either side of the cell body are called

In the resting neuron, _____ channels allow a small amount of Na+ and Ka+ to pass into and out of the cell along their concentration gradients.

Bones play a central role in the regulation of blood levels of

What type of channels are found on the dendrites and cell body of the neuron and are associated with graded (local) potentials?

Which one of the following is true about graded potentials?

________________ is the first level of organization that is alive.