
Locate radial head on this anatomical reference. Read the original plate labels to confirm the view and adjacent structures.
Zoom in, then drag to inspect. Keyboard: + / − to zoom, arrows to pan, 0 to reset. Tap the numbered markers to explore parts.
Radius & ulna: labelled teaching diagram. Original labels and colours retained.
Image: OpenStax College / university open textbook · Source / original · CC BY 4.0Numbered markers and focused views are Mediveerse learning overlays; the original reference is linked above.
Radius & ulna
Understand what you see.
Permit elbow movement and pronation–supination of the forearm.
Zoom into the original labels. Practise pointing out each structure, then explain it aloud. Diagrams are teaching references; specimen appearance and slide staining vary.
How to recognise it.
- Radius is lateral in anatomical position and broadens distally
- Ulna has a large proximal olecranon and trochlear notch
- The radial head is disc shaped
Point them out.
Tap a number to open its reference, zoom in and locate the structure. Numbers stay the same across views. This key follows landmarks visible in the reference images.
Think first. Then reveal.
Say your answer aloud before opening the suggested response.
01How would you identify radius & ulna?+
Radius is lateral in anatomical position and broadens distally. Ulna has a large proximal olecranon and trochlear notch. The radial head is disc shaped.
02Which forearm bone primarily articulates with the proximal carpal row?+
The radius articulates with the scaphoid and lunate. The ulna is separated from the carpus by an articular disc.
Read the references.
Credited anatomical plates, microscopy and university teaching references. Individual image credits appear below the viewer. Historical plates can use older terminology; use the lesson text for current names.