12.2 Properties of Neurons

1			What type of neuron would you expect to find in the afferent pathway?
			A)	multipolar
			B)	unipolar
			C)	bipolar
			D)	glial
2			What type of neuron would you expect to find in the efferent pathway?
			A)	multipolar
			B)	unipolar
			C)	bipolar
			D)	pseudounipolar

12.3 Supportive Cells (Neuroglia)

3			Which of the following cell types develops from WBCs called monocytes?
			A)	Schwann cells
			B)	oligodendrocytes
			C)	astrocytes
			D)	microglia
4			Which type of neuroglial cells produces cerebrospinal fluid?
			A)	ependymal cells
			B)	astrocytes
			C)	oligodendrocytes
			D)	satellite cells

12.4 Electrophysiology of Neurons

5			Which of the following is not characteristic of a local potential?
			A)	Local potential can be either inhibitory or excitatory.
			B)	Local potentials are reversed by the sodium potassium pump when cell stimulation stops.
			C)	Local potentials occur at great distance from where the stimulus was applied.
			D)	Local potentials can vary in magnitude depending upon the strength of the stimuli.
6			For the voltage-gated sodium/potassium channels to open, a critical voltage must be reached, which is called
			A)	threshold.
			B)	generator potential.
			C)	depolarization.
			D)	repolarization.
			E)	spike.
7			Resting membrane potential in an excitable cell is ________________.
			A)	-55mV
			B)	-90mV
			C)	70mV
			D)	-70mV

12.5 Synapses

8			The gates which open in response to neurotransmitters and may trigger an action potential are
			A)	voltage-gated channels.
			B)	ligand-gated channels.
			C)	leakage channels.

12.6 Neural Integration

9			What percentage of the US population has Alzheimer's Disease by the age of 85?
			A)	11%
			B)	24%
			C)	47%
			D)	69%
10			The process of adding the effects of many postsynaptic potentials is
			A)	summation.
			B)	neural integration.
			C)	discharging.
			D)	neuromodulation.