MEDIVEERSETHE PRACTICAL HUB
Long head arises from the supraglenoid/labral region.
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This multipart figure shows the different muscles that move the forearm. The major muscle groups are labeled.
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.
Biceps brachii
Understand what you see.
Flexes the elbow and strongly supinates the forearm, especially with the elbow flexed.
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.
- Two proximal heads
- Anterior arm belly
- Distal tendon reaches radial tuberosity
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 biceps brachii?+
Two proximal heads. Anterior arm belly. Distal tendon reaches radial tuberosity.
02Trace the long-head origin.+
It arises from the supraglenoid region and superior labrum; its tendon passes through the shoulder joint within a synovial sheath.
03Which nerve supplies biceps?+
Musculocutaneous nerve, mainly C5–C6. The biceps reflex chiefly tests these segments.
04What is its main functional or developmental significance?+
Flexes the elbow and strongly supinates the forearm, especially with the elbow flexed. Key structures to recognise: Long head; Short head; Bicipital aponeurosis.
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.