QUESTIONS 389 



45. Define a reflex action. 



46. What do you understand by sensor conduction as regards the 

 nerve fibers in the spinal cord? Motor conduction? 



47. Name the membranes of the brain. 



48. What parts of the central nerve system are included under 

 the brain? 



49. What are the functions of the medulla oblongata? The pons 

 Varolii? 



50. What is the membrane called which separates the cerebrum 

 from the cerebellum? 



51. What is the function of the cerebellum? 



52. How much does the cerebellum weigh? 



53. Name the lobes of the cerebrum. 



54. What structure connects the two lateral halves of the brain? 



55. Name the ventricles of the brain. 



56. Give a brief description of the structure of the cerebrum. 



57. What is the weight of the brain in the adult male? Female? 



58. Where is the motor area located upon the surface of the 

 cerebrum? Sensor? 



59. What parts of the body are controlled from the nerve cells 

 in the motor area? 



60. Does the motor area control the limbs of the same side of 

 the body upon which it is located? 



61. What are the functions of peripheral nerves? 



62. Name the cranial nerves. 



63. Name the nerves of smell, sight, taste, and hearing. 



64. What nerve supplies all the muscles of expression of the face? 



65. What nerve supplies the heart, lungs, through the cardiac 

 and pulmonary plexuses respectively? The liver, stomach, spleen, 

 kidneys? 



66. What nerve tissue comprises the sympathetic system? Is it 

 an independent system? 



67. What do you understand by the gangliated cord? Is it an 

 independent system? 



68. Name the groups of ganglia of the cord. 



69. What are the nerves called which connect the spinal nerves 

 with the sympathetic ganglia? 



70. Differentiate the nerve fibers in a gray rami from a white 

 rami communicantes. 



71. Give a brief description of the functions of the sympathetic 

 system. 



