Upper limb

Transverse humeral ligament and biceps tendon sheath (Brodie's ligament)

Ligamentum humerale transversum (Brodie) et vagina tendinis bicipitis

Origin

Greater tubercle of the humerus

Insertion

Lesser tubercle of the humerus and intertubercular groove

Function

Converts the intertubercular groove into a canal, retaining the long head of the biceps brachii tendon and its synovial sheath

Innervation

Axillary nerve (C5–C6)

Movement & chain

Stabilizes biceps tendon excursion during shoulder flexion/rotation

Palpation

Palpable over anterior bicipital groove during internal/external rotation

Clinical

Rupture causes medial dislocation/subluxation of the biceps tendon out of the bicipital groove (Yergason's test positive); biceps tenosynovitis.

Segmental innervation

C5–C6

In clinical practice

Biceps provocation testing (Speed, Yergason) and rehabilitation after biceps tenodesis

Region in the model

Upper limb