
Rounded proximal articular surface facing medially toward the glenoid.
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Humerus: 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.
Humerus
Understand what you see.
Forms the arm and participates in shoulder and elbow movement.
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.
- Rounded head faces medially, superiorly and slightly posteriorly
- Olecranon fossa lies posteriorly at the distal end
- Capitulum is lateral and trochlea is medial
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 humerus?+
Rounded head faces medially, superiorly and slightly posteriorly. Olecranon fossa lies posteriorly at the distal end. Capitulum is lateral and trochlea is medial.
02Which nerve is closely related to the surgical neck?+
The axillary nerve accompanies the posterior circumflex humeral vessels around the surgical neck.
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.