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Costal Pleura

The inner surface of the thoracic wall consisting of ribs, costal cartilages, and intercostal spaces is lined with the costal pleura, where a thin layer of loose areolar tissue called endothoracic fascia attaches it to inner surface of thoracic wall. In living beings, endothoracic fascia and thoracic wall are easily separable.


Costal Pleura

Costal Pleura

Anterior Relations

The internal thoracic vessels are directly located on the pleura within the first intercostal space. Its other connections are

  • Sternum
  • Costal cartilages
  • Ribs
  • Intercostal muscles

Posterior Relations

The costal pleura is related to the sympathetic chain as well as its branches. The intercostal nerve is located in the middle of the costal pleura as well as the posterior intercostal membrane at the posterior end of the intercostal space.

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