BoneIrregular bone

Fourth costal cartilage

Latin: Cartilago costalis IV sinistra

Location: Thorax — anterior

Paired structure: one on the left and one on the right side of the body.

View the fourth costal cartilage in 3D

Function

Left fourth costal cartilage, near the heart's anterior surface; in men the nipple usually lies over the fourth intercostal space.

Landmarks

  • Level of the nipple line

Articulations (joints)

  • Fourth rib
  • Sternum body

Clinical relevance

Pericardiocentesis is usually performed by the subxiphoid route or, under ultrasound, through the left fifth intercostal space near the apex.

Educational anatomy reference, not medical advice. About this content.