The autonomic nervous system has two divisions: The sympathetic division acts to energize the body, preparing it for action. The parasympathetic division acts to calm the body, allowing it to rest. Our everyday activities are controlled by the interaction between the sympathetic and parasympathetic nervous systems.
Update: N2Aos is now available for Kindle Fire HD and Kindle Fire HD 8.9. And you get the full Android experience here, including access to the Google Play store and all the other features offered by Android 4.2 (excepting what's not available via hardware, of course).
Amazon Kindle Fire HD 6, 6, Wi-Fi Tablet, 8GB, B00KC6I06S OfficeMax # 24899558. Description. One of the most affordable tablets ever - with fast quad-core processor, HD display, front and rear cameras and Dolby Audio. Fire OS 4.0 is easy to use and performs with quality. Integrates software, content, and the Cloud to deliver services such as Family Library, Firefly, and free cloud storage for photos. Enjoy an incredibly vivid, accurate 6 flat panel LCD touch-screen display.