Sylvius 4 Online provides a unique Web-based learning environment for exploring and understanding the structure of the human central nervous system. Sylvius features fully annotated surface views of the human brain, as well as interactive tools for dissecting the central nervous system and viewing fully annotated cross-sections of preserved specimens and living subjects imaged by magnetic resonance. Sylvius is more than a conventional atlas. The program also incorporates a Visual Glossary, a comprehensive, visually rich, searchable database of more than 500 neuroanatomical terms that are concisely defined and visualized in photographs, magnetic resonance images, and illustrations from the textbook Neuroscience, making Sylvius a single source for teaching and understanding the organization of the human central nervous system.

System Requirements
Sylvius 4 Online is a Web-based program that runs within an Internet browser and requires an active Internet connection as well as the following:
- Desktops/Laptops: Latest versions of browsers recommended.
- Tablets: 10-inch screen and 1GB of RAM recommended. (If using iPad, iPad 3 or newer recommended.) Older and/or smaller tablets may work, but performance may not be optimal.

Surface Anatomy Atlases--Provide a visual introduction to the location and names of the major external features and subdivisions of the human brain

Photographic Atlas: Digitally enhanced photographic images of a human brain specimen

Magnetic Resonance Image Atlas: High-resolution 3D reconstructions of a human brain specimen illustrating the major surface features

Brainstem Model: 3D views of a widely used model illustrating the surface features of the brainstem as well as the location of cranial nerve nuclei

Sectional Anatomy Atlases--Allow the user to explore the internal organization of the brain

Photographic Atlas: Allows the student to virtually dissect a human brain specimen in the three standard planes (coronal, axial, and sagittal)

Magnetic Resonance Image Atlas: High-resolution in vivo atlas comprised of coronal, axial, and sagittal sections, newly expanded to include complete series of sections in each anatomical plane

Brainstem and Spinal Cord: A high-resolution, cross-sectional histological atlas of the human spinal cord and brainstem, allowing students to examine principal tracts and nuclei

Pathways--Allows students to follow the flow of information in several important long-tract pathways of the central nervous system

Visual Glossary-Searchable glossary providing visual representations, concise anatomical and functional definitions, and audio pronunciation of neuroanatomical structures

ADDITIONAL FEATURES

High-resolution color digital images of human brain specimens and sections

Zoom feature for detailed inspection of brain images

Notes feature: user can type notes for any selected structure; notes are automatically saved in the user's account; ideal for capturing course-specific annotations to Sylvius's definitions

Audio pronunciation of neuroanatomical terms

Self-quiz mode

Image mark-up tools

Image orientation reference