The little finger extensor

Extensor digiti minimi · musculus extensor digiti minimi

A slim forearm muscle that straightens your little finger.

What it does

This narrow muscle runs alongside the main finger extensor and sends an extra tendon to the little finger. It lets the little finger straighten on its own, which is useful when you rest your hand while typing or stick your pinkie out.

Nearby

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Sources

Drafted with AI help; awaiting a human fact-check against these sources.

Open in the 3D atlas · Suggest a correction · Not medical advice.

3D models: Z-Anatomy & BodyParts3D (CC BY-SA 4.0 / 2.1 JP). Card text CC BY 4.0.