Serratus Posterior Inferior
Serratus Posterior Inferior
☆serratus posterior inferior - serratus posticus inferior
MusclePro
Anatomy
- Origin
- Spinous processes of the lower two thoracic and the upper two or three lumbar vertebrae.
- Insertion
- Lower borders of bottom four ribs.
- Nerve
- T9–T12
- Actions
- Pulls ribs down, resisting pull of diaphragm.
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