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Hole's Human Anatomy & Physiology, 9/e

David Shier, Washtenaw Community College
Ricki Lewis, The University at Albany
Jackie Butler, Grayson County Community College

Nervous System I: Basic Structure and Function

True/False Quiz

Please answer all questions


1	A damaged phrenic nerve would heal more slowly than a severed spinal nerve.
		A)	True
		B)	False


2	Oligodendrocytes can be found within the brain.
		A)	True
		B)	False


3	Nodes of Ranvier are only found on motor axons.
		A)	True
		B)	False


4	There is a higher concentration of K+ outside of a resting neuron than Na+.
		A)	True
		B)	False


5	A neuron will not respond to any stimulus during its absolute refractory period.
		A)	True
		B)	False


6	The axon nerve impulse is self-propagating and occurs in the direction towards the cell body.
		A)	True
		B)	False


7	A synapse is a junction between two dendrites.
		A)	True
		B)	False


8	Norepinephrine, epinephrine, dopamine and serotonin are classed as monoamine neurotransmitters.
		A)	True
		B)	False


9	Food additives, such as MSG (monosodium glutamate) derived from glutamic acid, could act as neurotransmitters.
		A)	True
		B)	False


10	Neurotransmitters are usually released into the synaptic vesicles during depolarization.
		A)	True
		B)	False


11	Sub-threshold stimuli can never evoke an action potential.
		A)	True
		B)	False


12	Convergence is a way of amplifying a stimulus through a neuronal pool.
		A)	True
		B)	False


13	An effector is usually a muscle or motor nerve.
		A)	True
		B)	False


14	Motor neurons usually have one axon and several dendrites.
		A)	True
		B)	False


15	Nervous tissue includes areas of connective tissue.
		A)	True
		B)	False


16	Somatic afferent fibers would carry sensory impulses away from the brain, towards areas such as the eye.
		A)	True
		B)	False


17	Most brain tumors arise from neuroglial cell overgrowth.
		A)	True
		B)	False


18	A damaged CNS nerve could not regenerate as easily as a PNS fiber.
		A)	True
		B)	False


19	Gray matter most significantly contains cell bodies and dendrites.
		A)	True
		B)	False


20	The ion that always moves in a membrane direction opposite to sodium is K+.
		A)	True
		B)	False


21	Drugs that hyperpolarize an axon would make the nerve less sensitive to stimulations.
		A)	True
		B)	False


22	Calcium channels open during synaptic transmission.
		A)	True
		B)	False


23	Having myelin increases the velocity of conduction.
		A)	True
		B)	False


24	The action potential is around -70 mv.
		A)	True
		B)	False


25	The all-or-none response means that a subthreshold stimulus can never stimulate a nerve.
		A)	True
		B)	False


26	Sodium moves out of an axon as it is depolarizing.
		A)	True
		B)	False


27	Local potential changes are graded.
		A)	True
		B)	False


28	Vesicles are intracellular accumulation of neurotransmitter.
		A)	True
		B)	False

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