Left 6th Costal Cartilage (Cartilago costalis prima sinister)

Layer: Bones

Educational content only — not medical advice.

Anatomy

The left sixth costal cartilage is a bar of hyaline cartilage that connects the anterior extremity of the left 6th rib to the lateral border of the sternum. Imparting crucial mechanical elasticity to the thoracic cage, it allows expansion of the chest wall during inspiration while protecting underlying cardiopulmonary viscera.

Clinical notes

Costochondritis of the anterior costal cartilages produces localized, tender anterior chest wall pain that can clinically simulate acute coronary syndrome or pleurisy.

Related structures

Educational references

FAQ

What is the role of the Left 6th Costal Cartilage?

The left sixth costal cartilage is a bar of hyaline cartilage that connects the anterior extremity of the left 6th rib to the lateral border of the sternum. Imparting crucial mechanical elasticity to the thoracic cage, it allows expansion of the chest wall during inspiration while protecting underlying cardiopulmonary viscera.

Why is the Left 6th Costal Cartilage clinically important?

Costochondritis of the anterior costal cartilages produces localized, tender anterior chest wall pain that can clinically simulate acute coronary syndrome or pleurisy.

Source & license

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