MEDIVEERSETHE PRACTICAL HUB
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.
This figure shows the structure of the elbow joint. The top, left panel shows the medial sagittal section of the right elbow joint. The top, right panel shows the lateral view of the right elbow joint, and the bottom, left panel shows the medial view of the right elbow joint.
Image: OpenStax / University of Hawaiʻi adapted teaching figures; original contributors credited at source · Source / original · CC BY 4.0 — figure credits at sourceNumbered markers and focused views are Mediveerse learning overlays; the original reference is linked above.
Proximal radioulnar joint
Understand what you see.
Pivot joint permitting pronation and supination.
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.
- Radial head lies in annular ligament
- Articulates with radial notch of ulna
- Functionally paired with distal radioulnar joint
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 do you identify proximal radioulnar joint?+
Radial head lies in annular ligament. Articulates with radial notch of ulna. Functionally paired with distal radioulnar joint.
02Which bone rotates around the other?+
Radius rotates relative to ulna; during pronation its shaft crosses anterior to ulna.
03What is pulled-elbow subluxation?+
In young children the radial head may partially slip from its annular-ligament relation after traction; this is a clinical diagnosis, not a normal joint movement.
04What is its main functional or developmental significance?+
Pivot joint permitting pronation and supination. Key structures to recognise: Radial head; Annular ligament; Radial notch.
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.