Question: NEED HELP WITH QUESTION #2, THE REST IS JUST TO REVIEW QUESTIONS 1-25 TO ENSURE THEY ARE CORRECT. THANK YOU AND WILL LEAVE THUMBS UP AND POSITIVE REVIEW. :-) NEED HELP WITH QUESTION #2, THE REST IS JUST TO REVIEW QUESTIONS 1-25 TO ENSURE THEY ARE CORRECT. THANK YOU AND WILL LEAVE THUMBS UP AND POSITIVE REVIEW. :-)

SELF-TEST The Nervous System Name Section Date b MULTIPLE CHOICE 1. The structural and functional unit of the nervous system is the a. Schwann cell @neuron b. neuroglia 8. telodendria 2. The ventral root of a spinal nerve a. conducts motor impulses c. conducts impulses that are to effectors. voluntarily controlled. b. is synonymous with the d. does all of these. anterior root. 3. The trochlear nerve (IV) functions in a. facial movements. c tongue movements. 6. eve movements. d. hearing C 4. Which lobc of the brain contains the primary motor area? a. occipital c.)frontal b. parietal d. temporal a 5. The diencephalon is composed of the union of which of the following: a thalamus and hypothalamus a second and third ventricles B. arbor vitae and cerebellum d. temporal and occipital lobes b 6. Which of these may be used to test the sensory function of the trigeminal nerve? a. vestibular reflex c. accommodation reflex to comcal rcllex d. swallowing reflex b 7. The cell body of a neuron is also known as the a. axon. c. neurofibril. perikaryon. d. dendrite. a 8. Identify the correct superior to inferior sequence of spinal nerves: @cervical, thoracic, lumbar, C. coccygeal, sacral, lumbar, sacral, coccygeal thoracic, cervical b. thoracic, lumbar. cervical d. lumbar, sacral, coccygeal, sacral, coccygeal cervical. thoracic 9. In the spinal cord, the tracts are a. divisions of the gray matter. C. same as ventral horns. divisions of the white matter. d. same as dorsal horns. 12/1 246 Unit 7 b b 10. The hypoglossal nerve functions in hearing c. facial movements tongue movements d. eye movements a 11. Which of these is a mixed cranial nerve (that is, both sensory and motor)? @ trigeminal c olfactory b. acoustic d. hypoglossal b 2. Which of the meninges is whitish and tougher? a. pia mater carachnoid 6. dura mater d. subarachnoid [ 13. A term that is synonymous with pituitary gland is a, infundibulum. Hypophysis. apons. b. optic chiasma. a 14. Which brain division is responsible for muscular coordination? (a) cerebellum cdiencephalon b. cerebrum d. medulla oblongata o 15. The brachial plexus consists of which nerves? a, cervical only C. cervical and lumbar 6. cervical and thoracic d. thoracic ( c 16. Which of the following cranial nerves influences maintenance of equilibrium? a. I Que vestibulocochlear b. VÌ U. X d 17. Which reflex protects eye tissues by causing blinking? a photo-pupil Caccommodation b. convergence d. domeal & 18. Which of these divides the cerebrum into left and right hemispheres? a longitudinal fissure central sulcus b. corpus callosum d. transverse fissure c 19. If the anterior (ventral) root of a spinal nerve were cut, how would the regions served by the nerve be affected? a. They would be painful There would be loss of b. There would be loss of sensation d. There would be loss of sensation and movement. 20. Which of the following would be capable of regenerating? a. brachial nerve spinal tracts b. cerebral tracts a hone could regenerate C 1. Which cranial nerves innervate the extrinsic eye muscles? a. I, II, and III III, IV, and vi b. III, IV, and v d. II, III, and VI nere movement. d. 13/1 ur rentals azer.corrente Bonsai Prporate finan The Nervous System С. d 22. Which of these is (are) not necessary for a reflex to occur? a. afferent spinal nerves ©cerebral cortex b. efferent spinal nerves effectors 23. Inability to touch the index finger to the nose with the eyes closed may indicate a disorder of the a. cerebrum. c. eighth cranial nerve. b. basal ganglia. cerebellum a 24. Where are cell bodies of afferent neurons located? dorsal root ganglia c. ventral horns of the spinal b. pyramidal cells of the cord cerebrum d. at the effector b 25. Which of these terms is synonymous with efferent? a. sensory c. autoriomic motor d. neuron DISCUSSION QUESTIONS 26. Give reasons why mature neurons cannot undergo mitosis following injury The mature neurons cannot divide due to th arrest of the cell in G. phase (kesting phase of the cell cycle. Normall must enter the Giphase to gain the capacity 27. Give the function of the following: a. olfactory bulbs contains the sunapses of ola factory neuron b. pyramidal tracts contain corticospinal tracts that carry motor se the somatic muscles of the body. contain the crossed nerve tracts of the opticne transmits visual sensations is the relay center for all sensations in the be touch pain, temperature, Vibrations e. hypothalamus is a main part of the limbi system and contre 1. cerebellum is the center for coordination of motor and sk c’optic chiasma d. thalamus