Help with Other Lymphatic Physiology - Human Anatomy and Physiology

There are three main groups of lymph nodes that provide lymphatic drainage in the thoracic area. There are the sternal nodes, intercostal nodes, and phrenic nodes.

The sternal nodes, also known as the parasternal nodes, drain the areas of the medial part of the breast, the intercostal areas, the diaphragm, and the area above found above the umbilicus. They drain into the meeting point of the internal jugular and subclavian veins. The intercostal nodes also drain the area of the intercostal spaces and the pleura, emptying into the thoracic duct. The phrenic nodes collect lymphatic fluid from the pericardium, liver, and diaphragm. They empty into the posterior mediastinal lymph nodes. The axillary nodes drain into the apical nodes, which then empty into the subclavian vein.