01 / Geometry
See around, not just through.
The 3D subset keeps the source positions of 6 separate structures. Rotate the arm, hide a layer, or isolate a muscle to inspect its shape.
Right side · Bone · 3D study
Ulna
Inspect this structure on its own. Turn off Isolate to reveal its position among the surrounding bones and muscles.
Atlas noteA dedicated model study, not a completed anatomy article. Source geometry and identifiers are preserved; anatomical review is still required.
RIGHT SIDE · STRUCTURE STUDYBodyParts3D / 4.0
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Gold = selected structure Click to select · double-click / double-tap to open
Drag to rotate · pinch or scroll to zoom
Drag to rotate · pinch or scroll to zoom
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BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 International. Sources & changes · Model provenance
02 / Explore
Follow the arm to the elbow.
Continue into the elbow study for a close-up of three bones and ten muscle parts, with layers you can hide and individual structures you can select.
Explore the elbow in 3D →Scope / Honest limits
Shape is not photorealism.
This is a reduced-resolution model, not a complete dissection. Skin, vessels, nerves and most neighboring muscles are omitted. Colors and shading are illustrative; there are no realistic muscle-fiber textures. Anatomical review is still required.
Anatomy essentials
Recognize ulna
The ulna occupies the medial side of the forearm in anatomical position.
Key landmarks
The olecranon forms the elbow tip. The trochlear notch receives the humeral trochlea; the nearby radial notch meets the radial head.
Try it in the viewer
Turn to Back, then isolate the bone. Compare its upper end with the radius using the structure selector.
Landmarks described here are not separate selectable meshes. Surface detail is limited by the source model.
Reading source: OpenStax · Anatomy and Physiology 2e, §8.2. Checked . Clinical review pending.
Source identification
About this model
BodyParts3D identifies this right-sided mesh as ulna. Its source identifiers are FMA23467 and FJ3391. Colors and lighting are illustrative, not tissue textures.