Costal cartilage

Costal cartilage

Anatomy

Cartilaginous forward/anterior/sternal prolongations of the ribs, articulating with the sternum, giving the thorax elasticity with strength.

Clinical

Hyaline cartilage is found on articular surfaces of synovial joints (as a thin covering layer with a smooth surface), providing resilience. Also found in nasal septum, larynx, trachea and bronchi, where it provides elasticity.

Costal cartilage has both qualities. Fractures can be treated conservatively if not displaced; steering wheel-type injury. In elderly, CCs can ossify; chest compressions can cause fractures.

Vignette

Hyaline; from the Greek for glass.

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