Fill in the blank with the best possible answer.

1		The division of the nervous system that controls cardiac and smooth muscles along with glands is the nervous system.
2		The branches that allow a single neuron to receive input from several other neurons are the .
3		Sensory information travels on fibers.
4		The type of neuroglial cell that may increase in number due to infection is the .
5		The neuroglial cell that is responsible for the "blood-brain barrier" is the .
6		An action potential will occur only if is reached.
7		A point where two cells communicate with one another is called a(n) .
8		When a cell it may go from -70mV to -50mV.
9		A gated channel opens when a substance binds to it.
10		Axons that have lipid wrapped them are referred to as fiber.
11		Neuroglial cells that surround cell bodies in the PNS are called cells.
12		A stimulus that results in depolarizing the cell receiving the signal causes a(n) .
13		Cavities withing the CNS are lined by .
14		Structurally, all motor neurons are classified as neurons.
15		Chemicals released by neurons that allow communication are called .