Anatomy of the Brainstem
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25 questions
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- Q1The cerebral aqueduct is associated with which division of the brainstem?ThalamusMedullaMidbrainPons30s
- Q2Which of the following describes the flow of CSF after it is secreted by the choroid plexus?Lateral ventricles--third ventricle--cerebral aqueduct--fourth ventricleLateral ventricles--third ventricle--subarachnoid space--fourth ventricleLateral ventricles--cerebral aqueduct--third ventricle--fourth ventricleFourth ventricle--third ventricle--cerebral aqueduct--lateral ventricles30s
- Q3The site of closure of the fourth ventricle and the beginning of the central canal of the spinal cord is marked by theRhomboid fossaObexMedian sulcusForamen of Magendie30s
- Q4The long tract of the spinal cord that is responsible for relaying motor information isAnterolateral systemDorsal column-medial lemniscal systemGracilis-cuneate systemCorticospinal tract30s
- Q5The major nucleus of the midbrain that forms a relay station of the auditory pathways from the cochlea to the cerebral cortex is theInferior colliculusCorpora quadrigeminaSuperior colliculusCrus cerebri30s
- Q6Which of the following is a major efferent pathway from the cerebral cortex to the brainstem and spinal cord and is located in the basilar area of the midbrain?Superior colliculusCrus cerebriInferior colliculusCorpora quadrigemina30s
- Q7Which cranial nerve is the only nerve to exit the brainstem dorsally?CN VCN IVCN IIICN VI30s
- Q8Cortically derived axons such as corticobulbar, corticospinal, and corticopontine axons largely make up which feature of the brainstem?Cuneate tubercleMidbrain tegmentumBasilar ponsPontine tegmentum30s
- Q9The pons and medulla are derived fromRhombencephalonDiencephalonTelencephalonMesencephalon30s
- Q10Which cranial nerve emerges from the preolivary sulcus of the medulla?CN XCN XICN XIICN IX30s
- Q11The superior colliculus has which of the following functions?Modulates contraction of extraocular musclesProduction of CSFCoordinate reflexes to auditory stimuliEye movement30s
- Q12Which of the following statements regarding the brainstem is false?It extends primarily from the thalamus to the spinal cordIt controls heart rate and respirationIt extends primarily from the hypothalamus to the spinal cordIt contains nuclei for most of the cranial nerves and controls heart rate30s
- Q13Cerebrospinal fluid is secreted primarily in which ventricle(s)?4th ventricle3rd and 4th ventriclesLateral ventricles3rd ventricle30s
- Q14The tectum of the midbrain consists of two pairs of bumps called the:Medial colliculi and lateral colliculiVentral colliculi and dorsal colliculiSuperior colliculi and inferior colliculiColliculi maximum and colliculi minimum30s
- Q15The colliculus that coordinates reflexes to auditory stimuli, such as attention to loud sounds, is:The inferior colliculusThe superior colliculusThe medial colliculusThe colliculus minimum30s