Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology SEVENTH EDITION Elaine N. Marieb Katja Hoehn Active Lecture Questions prepared by Cinnamon VanPutte, Southwestern Illinois College C H A P T E R 12 The Central Nervous System

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following best explains the convolutions and folds present in an adult brain? a. as the brain developed, the differentiation of the primary vesicles into the secondary vesicles occurred as outpocketings and spiral patterning b. each of the convolutions present arose from the five secondary vesicles c. the highly folded convolutions and flexures increase the brain’s surface area and allow the brain to fit into the cranium

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The outer cortex of gray matter present in the cerebellum is composed primarily of __________. a. myelinated neuron fibers b. connective tissue c. fat d. neuron cell bodies

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The brain contains _________ ventricles. a. 4 b. 3 c. 2 d. 1

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The _________ of the brain is the location of our conscious mind. a. Brodman area b. cerebellum c. brain stem d. cerebral cortex

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Random electrical stimulation of the precentral gyrus would be more likely to cause muscle contractions of the ________. a. face and hands b. hip c. shoulder d. arm

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Sensory stimulation of which body area would be most likely to activate brain activity? a. intestine b. lips and fingertips c. elbow d. knee

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The sayings “left-brain” or “right-brain” indicate that the two cerebral hemispheres display a phenomenon called __________. a. left-brain dominance b. right-brain dominance c. lateralization d. cerebral localization

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Cerebral white matter within each hemisphere is important for ________. a. communication between the two hemispheres. b. coordination of synchronized movements. c. visual association. d. olfaction.

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following brain regions is a major convergence area for most sensory input before it is sent on to the cerebral cortex? a. hypothalamus b. epithalamus c. interthalamic adhesion d. thalamus

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Of the following brain regions, which, if severely damaged, would result in death? a. cerebral cortex b. medulla oblongata c. basal nuclei d. cerebellum

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Professional ballet dancers have a particularly efficient function of which brain region? a. cerebral cortex b. medulla oblongata c. basal nuclei d. cerebellum

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following brain systems is heavily involved in mediating emotional responses? a. limbic system b. reticular formation c. reticular activating system d. both a and b

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings If inhibited, which brain system would allow previously filtered stimuli to enter our consciousness? a. limbic system b. reticular formation c. reticular activating system d. both a and b

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures, if damaged, would produce less cerebrospinal fluid? a. subarachnoid space b. choroid plexus c. pia mater d. arachnoid villi

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The ______ portion of the spinal cord controls muscle movement. a. ventral b. dorsal c. medial d. posterior

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings A _________ procedure might be performed to test for viral or bacterial meningitis. a. CSF injection b. lumbar tap c. cervical tap d. thoracic tap

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Ascending tracts transmit _______ impulses while descending tracts conduct _______ impulses. a. motor… sensory b. sensory… motor c. spinal… cranial d. cranial… spinal