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| 1 | |
In the embryo, the cerebral hemispheres develop from which of the following secondary vesicles? |
| | A) | rhombencephalon |
| | B) | myelencephalon |
| | C) | telencephalon |
| | D) | diencephalon |
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| 2 | |
The thin layer of gray matter on the surface of the cerebrum is called the |
| | A) | cortex. |
| | B) | cerebellum. |
| | C) | reticular formation. |
| | D) | basal nuclei. |
| | E) | limbic system. |
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| 3 | |
Which structure is found at the base of the longitudinal fissure? |
| | A) | longitudinal sulci |
| | B) | longitudinal gyri |
| | C) | corpus callosum |
| | D) | rostral callosum |
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| 4 | |
Formation of the CNS begins with a structure called the |
| | A) | neural plate. |
| | B) | neural groove. |
| | C) | neural fold. |
| | D) | neural tube. |
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| 5 | |
The falx cerebri, which separates the two cerebral hemispheres, is in fact part of the |
| | A) | dura mater. |
| | B) | choroid plexus. |
| | C) | arachnoid mater. |
| | D) | dural sinus. |
| | E) | pia mater. |
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| 6 | |
Which of the following statements concerning the blood-brain barrier is false? |
| | A) | The blood-brain barrier is formed by the basement membrane and tight junctions between endothelial cells of capillaries. |
| | B) | The blood-brain barrier is permeable to glucose, alcohol, caffeine, nicotine, and anesthetics. |
| | C) | Where the blood-brain barrier is absent, HIV can enter the brain. |
| | D) | The blood-brain barrier is impermeable to water, and prevents dehydration from affecting the brain. |
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| 7 | |
CSF is absorbed by the |
| | A) | choroid plexus. |
| | B) | arachnoid granulations. |
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| 8 | |
Which part of the hindbrain is involved in smoothing muscular contractions, coordinating eye and body movements, and learning and coordinating motor skills? |
| | A) | medulla oblongata |
| | B) | pons |
| | C) | cerebellum |
| | D) | midbrain |
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| 9 | |
Degeneration of the neurons in this area of the midbrain contribute to the muscle tremors seen in Parkinson disease. |
| | A) | red nucleus |
| | B) | superior colliculi |
| | C) | inferior colliculi |
| | D) | substantia nigra |
| | E) | corpora quadrigemina |
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| 10 | |
This area of the brain contains nuclei that control habituation and pain modulation. |
| | A) | thalamus |
| | B) | substantia nigra |
| | C) | reticular formation |
| | D) | corpora quadrigemina |
| | E) | midbrain |
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| 11 | |
The hunger and satiety centers are found in the |
| | A) | mammillary bodies. |
| | B) | thalamus. |
| | C) | reticular formation. |
| | D) | hypothalamus. |
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| 12 | |
Which type of fiber tract within the brain crosses from one cerebral hemisphere to the other? |
| | A) | association tracts |
| | B) | commissural tracts |
| | C) | projection tracts |
| | D) | decussation tracts |
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| 13 | |
If you are thinking about a special song right now, you are most likely to be using this lobe of the cerebral cortex. |
| | A) | insula |
| | B) | temporal |
| | C) | occipital |
| | D) | parietal |
| | E) | frontal |
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| 14 | |
Which of the following has a close association with olfactory pathways? |
| | A) | limbic system |
| | B) | basal nuclei |
| | C) | tectum |
| | D) | lateral geniculate body |
| | E) | reticular formation |
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| 15 | |
Your stroke patient can understand you when you give her either a written or verbal command, but she has nonfluent aphasia. What specific area of the brain is damaged? |
| | A) | globus pallidus |
| | B) | effective language |
| | C) | limbic |
| | D) | Wernicke's |
| | E) | Broca's |
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| 16 | |
If the hippocampus were impaired, what mental function would most notably be lost? |
| | A) | remembering facts |
| | B) | reflexes |
| | C) | speech |
| | D) | emotions |
| | E) | senses |
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| 17 | |
The chorda tympani is a branch of the _____________ cranial nerve and carries the sensation of __________________. |
| | A) | trigeminal; light touch |
| | B) | vestibulocochlear; balance |
| | C) | facial; taste |
| | D) | optic; vision |
| | E) | glossopharyngeal; taste |
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| 18 | |
A drooping eyelid and dilated pupil would probably indicate a problem with which cranial nerve? |
| | A) | optic nerve |
| | B) | oculomotor nerve |
| | C) | facial nerve |
| | D) | trochlear nerve |
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| 19 | |
This cranial nerve arises from the pons. |
| | A) | oculomotor |
| | B) | trochlear |
| | C) | trigeminal |
| | D) | glossopharyngeal |
| | E) | vagus |
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| 20 | |
Which nerve innervates the sternocleidomastoid muscle? |
| | A) | hypoglossal nerve |
| | B) | accessory nerve |
| | C) | vagus nerve |
| | D) | facial nerve |
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