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External intercostal membrane

Membrana intercostalis externa · Zevní mezižeberní membrána

Joints & cartilage

Looks like

A thin sheet at the front of each rib gap, where the outer intercostal muscle ends and is replaced by membrane toward the breastbone.

What it does

Continues the muscle layer and closes the rib gap.

Keeping it well

No clinical role on its own; it matters as a layer that needles and drains pass through in the chest wall.

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