Palmar interossei

Schematic anatomy
Deep layerPalmar interossei

Arms

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Biceps

Long headShort headBrachialis · supporting muscle

Triceps

Long headLateral headMedial head

Forearms

BrachioradialisFlexor carpi radialisFlexor carpi ulnarisFlexor digitorum superficialisFlexor digitorum profundusFlexor pollicis longusExtensor carpi radialis longus & brevisExtensor carpi ulnarisExtensor digitorumExtensor pollicis longus & brevisAbductor pollicis longusPronator teresPronator quadratusSupinator

Hands

Abductor pollicis brevisFlexor pollicis brevisOpponens pollicisAdductor pollicisHypothenar musclesLumbricalsDorsal interosseiPalmar interossei
Movement guide

Palmar interossei

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Draw the fingers together and help coordinate knuckle movement.

01

Finger adduction press

Finger adduction · Soft putty

Also works

Lumbricals; finger flexors and extensors stabilize

How to perform

Place a small piece of soft putty between adjacent fingers. Bring the fingers together to compress it.

Use gentle pressure without twisting the fingers.

Example volume · 1–2 sets × 8–12 reps

Referenceswww.guysandstthomas.nhs.uk

Community draft · awaiting expert review