1
A) sensory pathway B) autonomic nervous system C) voluntary nervous system D) all of the above 2
A) axons B) dendrites C) cell body D) myelin 3
A) summation B) multiplication C) hypopolarization D) decreasing frequency 4
A) are summable B) are amplifiable C) result from facilitated diffusion D) are all-or-nothing events 5
A) serotonin B) dopamine C) neuropeptides D) norepinephrine 6
A) axons B) dendrites C) neuron cell bodies D) myelin sheaths E) hormones 7
A) active transport B) simple diffusion C) facilitated diffusion D) all of the above E) none of the above 8
A) Na+ B) K+ C) negatively charged anions D) none of the above would be found in large quantities inside the neuron 9
A) myelin sheath B) synapse C) node of Ranvier D) dendrite E) axon 10
A) neuromuscular junctions B) nodes of Ranvier C) sensory receptors D) excitatory synapses E) inhibitory synapses 11
A) depolarization B) an action potential C) both of the above D) none of the above 12
A) synaptic cleft B) axon C) myelin sheaths D) hormones E) dendrites 13
A) neurotransmitter B) synapse C) node of Ranvier D) threshold E) voltage-gated channel 14
A) cell body B) dendrite C) cell nucleus D) postsynaptic membrane E) presynaptic membrane 15
A) a neurotransmitter B) an enzyme that breaks down a neurotransmitter C) a stimulant that triggers an action potential D) a hormone E) none of the above 16
A) Na+ moves out of the neuron B) K+ moves into the neuron C) organic ions move out of the neuron D) all of the above E) none of the above 17
A) nodes of Ranvier B) dendrites C) synapses D) Schwann cells E) cell bodies 18
A) the inside of the neuron is more negatively charged than the outside B) outside of the neuron is more negatively charged than the inside C) either of the above can be true D) the inside and the outside of the neuron have the same electrical charge 19
A) maintain proper ionic concentration gradients across the neuron membrane B) generate the nerve impulse when the neuron is stimulated C) transmit the nerve impulse across the synaptic cleft between neurons D) provide a source of Na+ and K+ by splitting NaCl and other appropriate molecules E) none of the above - it plays no role 20
A) GABA B) serotonin C) acetylcholinesterase D) acetylcholine E) none of the above 21
A) an unmyelinated, small-diameter nerve B) an unmyelinated, large-diameter nerve C) a myelinated, small-diameter nerve D) a myelinated, large-diameter nerve E) they would all have the same conduction velocity 22
A) medulla B) mesencephalon C) diencephalon D) hypothalamus E) cerebrum 23
A) cerebrum B) forebrain C) midbrain D) hindbrain E) optic lobes 24
A) pons B) nerve net C) thalamus D) cerebral cortex E) corpus callosum 25
A) pyramidal tracts B) reticular system C) cerebellum D) corpus striatum E) limbic system 26
A) pons B) medulla oblongata C) cerebrum D) cerebellum E) all of the above are part of the hindbrain 27
A) optic B) parietal C) frontal D) temporal E) occipital 28
A) motor reflex coordination B) visceral integration C) sensory integration D) hormone production E) none of the above 29
A) sensory nerves B) afferent nerves C) efferent nerves D) interneurons E) extensors 30
A) cerebral cortex B) medulla C) cerebellum D) reticular system E) viscera 31
A) flexors and extensors B) sympathetic and parasympathetic nervous systems C) both of the above D) none of the above 32
A) serotonin B) acetylcholine C) adrenaline or noradrenaline D) all of the above E) none of the above 33
A) excites it B) inhibits it C) kills it D) has no effect at all E) has a variable effect; sometimes excites it, sometimes inhibits it 34
A) As nervous systems evolved, there was a trend toward a decreasing number of interneurons. B) As nervous systems evolved, the hindbrain and especially the cerebellum played an increasingly more dominant role. C) The autonomic nervous system stimulates normal internal body functions and inhibits alarm responses, while the somatic nervous system does the opposite. D) Memories appear to be stored in more than one part of the brain. E) The two hemispheres of the brain carry out identical functions. 35
A) Axon B) Synapse C) Dendrite D) Soma 36
A) The nerve impulse is transmitted next to the axon of the presynaptic neuron. B) The synaptic vesicles release neurotransmitters into the synaptic cleft by exocytosis. C) The nerve impulse is transmitted to the postsynaptic neuron by a direct connection between the two. D) The nerve impulse is transmitted to the axon of the postsynaptic neuron. 37
A) There would be increased blood flow to the skeletal muscles. B) There would be increased activity of the digestive system. C) There would be increased blood flow to the lungs and heart. D) Blood pressure would increase. 38
A) The sympathetic nervous system always stimulates the organ system. B) The sympathetic nervous system always inhibits the organ system. C) The parasympathetic nervous system always stimulates the organ system. D) It depends on the organ system whether the division stimulates or inhibits it. 39
A) Saltatory conduction is a mechanism of endocrine system regulation. B) Saltatory conduction is signal transduction of incoming messages through the membrane. C) Saltatory conduction is the influx of sodium ions during neuron impulse conduction. D) Saltatory conduction is transmission of nerve impulses along myelinated fibers. E) Saltatory conduction is the transmission of nerve impulses to the endocrine glands. 40
A) They are electrochemical in nature. B) They are self-propagating. C) They are incremental. D) They are transmitted rapidly. E) All of these are true. 41
A) True B) False 42
A) True B) False 43
A) True B) False 44
A) True B) False 45
A) True B) False 46
A) True B) False 47
A) temporal B) parietal C) occipital D) motor E) frontal 48
A) True B) False 49
A) True B) False 50
A) True B) False 51
A) acetylcholine. B) adrenalin C) dopamine D) noradrenalin E) either a or d.
2002 McGraw-Hill Higher Education