Nov 6, 2025 · The extensor expansion (extensor hood) of the hand is a specialised connective tissue structure by which the extensor tendons insert onto the phalanges. It is a complex structure which …

The extensor expansion allows for contractile forces from the extensor compartment muscles to be transferred to the phalanges. It also balances the forces across the phalanges.

The extensor tendon mechanism works by pulling the extensor tendons (black arrows) towards the forearm, which causes the fingers to extend at the MCP joint. The central slip is particularly important …

The extensor expansion is a complex aponeurotic extension of the extensor tendons that form as the tendons pass over the dorsal aspect of the digits. Each extensor expansion is triangular shaped with …

2 days ago · The Extensor Expansion of the Hand is a complex set of ligaments which work to support the extensor tendon insertion on the phalanges and help provide balance to the muscles acting on …

Extensor Hoods are an elaboration of the extensor digitorum comunis (EDC) tendon on the dorsum of each phalanx. The extensor indicis (EI) and the extensor digiti minimi (EDM) insert into the extensor …

Jan 17, 2021 · The extensor expansions (also known as the extensor hood or dorsal digital expansion) are triangular aponeuroses by which the extensor tendons insert onto the phalanges.

The extensor expansion of hand (a.k.a. the dorsal digital expansion) is a complex triangular aponeurotic structure through which the extensor tendon inserts onto the phalanges.

Anatomy of the Upper Limb: Extensor Expansion Stanford Center for Health Education 114K subscribers Subscribe

Sep 27, 2025 · The extensor hood is an aponeurotic expansion of the extensor digitorum tendon on the dorsum of each finger. It forms a triangular sheet that covers the proximal phalanx and extends …