ORGANIZATION OF THE NERVOUS SYSTEM STATION 6: . Choose the key responses that best correspond to the descriptions provided in the following statements. Insert the appropriate letter or term in the answer blanks. Key Choices A. Autonomic nervous system C. Peripheral nervous system (PNS) B. Central nervous system (CNS) D. Somatic nervous system 1. Nervous system subdivision that is composed of the brain and spinal cord 2. Subdivision of the PNS that controls voluntary activities such as the activation of skeletal muscles 3. Nervous system subdivision that is composed of the cranial and spinal nerves and ganglia 4. Subdivision of the PNS that regulates the activity of the heart and smooth muscle, and of glands; it is also called the involuntary nervous system 5. A major subdivision of the nervous system that interprets incoming information and issues orders 6. A major subdivision of the nervous system that serves as communication lines, linking all parts of the body to the CNS NERVOUS TISSUE-STRUCTURE AND FUNCTION STATION 7: . This exercise emphasizes the difference between neurons and neuroglia. Indicate which cell type is identified by the following descriptions, Insert the appropriate letter or term in the answer blanks. Key Choices A. Neurons B. Neuroglia 1. Support, insulate, and protect cells 2. Demonstrate irritability and conductivity, and thus transmit electrical messages from one area of the body to another area 3. Release neurotransmitters 4. Are amitotic 5. Able to divide; therefore are responsible for most brain neoplasms