Chapter 28 Divisions of The Nervous System Key

Divisions of the Nervous System Name: Key Use the following word bank to complete the paragraphs. Central Nervous System Peripheral Nervous System (x2) Sensory Input Motor Neurons Interneurons Somatic Nervous System Autonomic Nervous System (x3) Sympathetic Division Parasympathetic Division Muscles Glands Energy Increases The nervous system can be divided into two main sections. The Central Nervous System includes the brain and spinal cord. It also completes integration with the help of Interneurons. The second part of the nervous system is called the Peripheral Nervous System. It allows us to complete Sensory Input with sensory neurons and uses Motor Neurons to accomplish a motor output.   The Peripheral Nervous System can be broken down further into multiple divisions. The first division occurs when we delineate between our senses and our movements. The Sensory division accumulates information from the external environment as well as the internal environment. The Motor division carries messages to Muscles and Glands.   The motor division is then broken into two more separate systems: the Somatic Nervous System and the Autonomic Nervous System. The Somatic Nervous System is responsible for mostly voluntary actions involving the Skeletal system. The Autonomic Nervous System carries signals to mostly our organs and is mostly involuntary. To continue, the Autonomic Nervous System can be divided into two more divisions. These divisions can increase energy level or decrease energy level. The Sympathetic Division prepares our body for intense activity which Increases overall energy level. The Parasympathetic Division will calm the body down and return it to normal maintenance functioning. This lowers the overall Energy level. Using your knowledge of the nervous system answer the following questions: 1. Match the terms in Column B with the appropriate function descriptions in Column A. Column A Column B Takes information from external/internal environment - C. Peripheral Made up of motor neurons and further broken into 2 divisions - B. Motor Division All parts of the nervous system but the brain and spinal cord - A. Peripheral Increases energy within your body - F. Sympathetic Returns your body to normal maintenance function - G. Parasympathetic Controls involuntary movement - D. Autonomic Regulates voluntary movement - E. Somatic 2. When Mr. Valdez thought his 1-year-old daughter had fallen down the stairs, his heartbeat accelerated, his blood pressure rose, and he began to perspire heavily. Mr. Valdez's state of arousal was activated   by his: a. parasympathetic nervous system. b. somatic nervous system. c. sympathetic nervous system. d. central nervous system. 3. The parasympathetic nervous system is a division of the _____ nervous system. a. somatic b. autonomic c. sympathetic d. central 4. The part of the peripheral nervous system that controls the movement of your legs when you walk is the: a. reticular formation. b. sympathetic nervous system. c.   parasympathetic nervous system. d. somatic nervous system. 5. Which of the following is a function of the motor division of the nervous system? a. integrating sensory information b. providing sensation of the internal and external environments c. coordinating voluntary and involuntary activities d. sending signals to muscles e. regulating or controlling peripheral structures and   systems 6. Briefly explain why each statement is incorrect or misleading. a. The parasympathetic division of the autonomic nervous system slows digestion. Its General Function is to control homeostasis And the body's Rest-And-digest response. b. Nerve signals travel quickly through a neuron's myelin sheath. The FA-Hy cells (Schwann) allow the signal to move faster by "jumping" from node to node.