The human body: an interactive 3D anatomy atlas
Simbiotiks is a free biology education resource for undergraduate students. This page is a 3D human body you peel back one layer at a time, ordered by measured depth below the skin: skin, muscle, bone, organs, vessels, and brain and nerves.
Or choose an organ system, which cuts across the layers: cardiovascular, respiratory, digestive, nervous, musculoskeletal, urinary, endocrine, reproductive, integumentary, lymphatic and sensory. From an organ you can go down the scale ladder into the cells it is built from.
Body model: BodyParts3D, © The Database Center for Life Science, CC BY 4.0.
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