Subcostals – Innermost Intercostals
Subcostals – Innermost Intercostals
☆subcostales - infracostales
MusclePro
Anatomy
- Origin
- Inner surface of each rib near its angle. They are usually well developed only in the lower part of thorax.
- Insertion
- Medially on the inner surface of second or third rib below.
- Nerve
- Intercostal nerves.
- Actions
- Draw ventral part of ribs downward, decreasing the volume of the thoracic cavity for forceful expiration.
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