Internal intercostals muscle

What is Internal intercostals muscle?

Internal intercostals muscle meaning Muscle of respiration. It originates in the ridge on the inner surface of the rib and inserts into the upper border of the rib below. Its main function is drawing adjacent ribs together.Other muscles of respiration are:DiaphragmExternal intercostalsQuadratus lumborum

 

reference: national Cancer Institute – Glossary for Registrars

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