Choose the best answer.

1			The Nissl bodies of a neuron consist of _______________.
			A)	synaptic vesicles
			B)	lipofuscin
			C)	rough endoplasmic reticulum
			D)	cytoskeleton
2			A unipolar neuron has _____________________.
			A)	one axon arising from the soma
			B)	one axon and one dendrite arising from the soma
			C)	two axons and multiple dendrites arising from the soma
			D)	a single process that branches into a peripheral fiber and a central fiber
3			The main component of myelin is _______________.
			A)	phospholipid
			B)	protein
			C)	lipofuscin
			D)	cholesterol
4			The bodies of Schwann cells make up__________________.
			A)	the axolemma
			B)	the myelin
			C)	the endoneurium
			D)	the neurilemma
5			The reason that damaged nerve fibers in the CNS are NOT able to regenerate is because they lack___________________.
			A)	the axolemma and neurilemma
			B)	the neurilemma and endoneurium
			C)	the myelin sheath and neurilemma
			D)	Schwann cells and nodes of Ranvier
6			What autoimmune disorder results in deterioration of the myelin sheath in the CNS?
			A)	Tay-Sachs disease
			B)	Spina bifida
			C)	Multiple sclerosis
			D)	Parkinson's disease
7			Most brain tumors arise from ___________________.
			A)	neuroglial cells
			B)	sensory (afferent) neurons
			C)	multipolar neurons
			D)	bipolar neurons
8			The embryonic forebrain, midbrain, and hindbrain arise from what structure?
			A)	The neural crest
			B)	The neural tube
			C)	The telencephalon
			D)	The neural folds
9			Which of the following is NOT a characteristic of neurons?
			A)	Excitability
			B)	Conductivity
			C)	Ability to undergo mitosis in adults
			D)	Secretion
10			Which of the following is NOT a neurotransmitter?
			A)	Acetylcholine
			B)	Serotonin
			C)	Glutamate
			D)	Lipofuscin
11			The brain and spinal cord makeup the _______________.
			A)	sensory division
			B)	central nervous system (CNS)
			C)	somatic motor division
			D)	peripheral nervous system (PNS)
12			A swelling of a nerve containing a group of cell bodies outside of the CNS is called a ________________________.
			A)	cyst
			B)	nucleus
			C)	ganglion
			D)	axon
13			The sympathetic and parasympathetic divisions are ____________________.
			A)	sensory
			B)	motor
			C)	both sensory and motor
14			About 90% of all human neurons are of this type. What are they called?
			A)	Sensory
			B)	Motor
			C)	Interneurons
15			The part of the neuron that carries impulses away from the cell body is called the ______________________.
			A)	soma
			B)	axon
			C)	dendrite
			D)	nissl body
16			The part of the neuron between the soma and axon is called the _________________.
			A)	myelin sheath
			B)	node of Ranvier
			C)	internodal space
			D)	axon hillock
17			These neurons have one axon and one dendrite from the cell body. What are they called?
			A)	Unipolar
			B)	Anaxonic
			C)	Bipolar
			D)	Multipolar
18			These cells outnumber the neurons about 50 to 1 and help support the neurons. What are they called?
			A)	Myelin
			B)	Neuroglia
			C)	Schwann cells
			D)	Nissl bodies
19			The gaps between Schwann cells or neurolemmacytes are called ________________.
			A)	nodes
			B)	hillocks
			C)	synapses
			D)	knobs
20			The space between a neuron and any other cell is called a __________________.
			A)	node
			B)	hillock
			C)	synapse
			D)	knob
21			In a chemical synapse at the junction between the pre and postsynaptic cells, this is released to cause an action potential. What is this chemical called?
			A)	Neuron juice
			B)	Neurotransmitter
			C)	Synaptic transmitter
			D)	Axonal stimulant
22			A neuronal pool in which one neuron synapses with several postsynaptic cells is called a _____________________ circuit.
			A)	shorted
			B)	convergent
			C)	reverberating
			D)	divergent
23			When you look at a lamp and then close your eyes and still continue to see the lamp. This is an example of __________________.
			A)	parallel after-discharge
			B)	convergent
			C)	reverberating
			D)	divergent
24			The closing of the neural tube in the embryo is called ____________________.
			A)	neural plate formation
			B)	neurulation
			C)	telencephalation
			D)	notochord formation