Lumbar puncture.

Anterior view of the anatomy of the superior mediastinum after excision of ribs and removal of thymus gland.

Anterior view of the superior mediastinum ribs excised, heart, thymus, aortic arch and vena cava removed to reveal pulmonary arteries.

Anterolateral view of the spinal cord and prevertebral structures.

Inferior view of the roof of the pleural cavity with the pleura and heart removed.

Right and left vagus nerve, esophageal nerve plexus, and vagal trunks. Azygos vein and related structures.

Sacral and coccygeal nerve plexuses. A. Sagittal section.

Exposure of dorsal scapular region.

Posterior mediastinum viewed from the right: parietal pleura is intact on left side, and partially removed on right. A portion of esophagus, between bifurcation of trachea and diaphragm, is also removed.

Posterolateral view of the posterior wall. Latissimus dorsi muscle is partially reflected.

Median section of the lumbar region of the vertebral column. The image to the right indicates the orientation of the main illustration.

Right medial view of the mediastinum after the right lung has been removed. The costal and mediastinal pleurae have mostly been removed as well.

Lumbar nerve plexus