Where does the thoracic duct drain to?

Where does the thoracic duct drain to?

The thoracic duct continues superiorly to empty into the junction of the left subclavian and internal jugular veins. The right lymphatic duct drains the right side of the thorax, right upper extremity, and right side of the neck and head.

What does the thoracic lymphatic duct drain into?

The thoracic duct usually starts from the level of the twelfth thoracic vertebrae (T12) and extends to the root of the neck. It drains into the systemic (blood) circulation at the junction of the left subclavian and internal jugular veins, at the commencement of the brachiocephalic vein.

Where do the thoracic duct and right lymphatic duct drain into?

Anatomy and Function of Lymphoid Tissue The collecting vessels merge and empty lymph into the bloodstream by way of the thoracic duct at its entry into the left subclavian vein or by the right lymphatic duct, which empties into the right subclavian vein.

Where does the thoracic duct drain dog?

In dogs (cats), the thoracic duct lies between the aorta and the azygous vein on the right side (left side) of the thorax and terminates in the venous system of the neck (left external jugular vein or jugulo-subclavian angle). Regardless of the etiology, chylothorax is a potentially devastating disease.

What happens when there is blockage in the main thoracic duct?

When the thoracic duct is blocked (such as by a tumor), it usually leads to secondary rupture of lymphatic ducts leading to the blockage. Many people are familiar with the lymphedema with breast cancer that some women experience after breast surgery that leads to swelling and tenderness of the arm.

How does the way lymph drains from the right thoracic duct differ from the way it drains from the left thoracic duct?

The right lymph duct drains the right arm, shoulder area, and the right side of the head and neck. The left lymph duct, or thoracic duct, drains everything else, including the legs, GI tract and other abdominal organs, thoracic organs, and the left side of the head and neck and left arm and shoulder.

What does Chyle mean in English?

Chyle (from the Greek word χυλός chylos, “juice”) is a milky bodily fluid consisting of lymph and emulsified fats, or free fatty acids (FFAs). It is formed in the small intestine during digestion of fatty foods, and taken up by lymph vessels specifically known as lacteals.

Where does the right lymphatic duct drain to?

It has a short 2 cm course, usually draining into the systemic venous system at the junction of the right internal jugular and subclavian veins.

What is the thoracic duct dog?

The thoracic duct (TD) is the extension of the CC into the chest, which carries chyle into the thoracic cavity and eventually empties its contents into the cranial vena cava (CrVC) close to the heart (Figure 2).

What does chyle mean in English?

Where does the fluid drain from the thoracic duct?

The duct will also lie anterior to the anterior scalene muscle and left phrenic nerve before its final destination. The fluid drains at the level of the venous angle (Pirogoff’s angle) between the left subclavian vein and the left internal jugular vein, where it reenters the systemic venous circulation.

Where is the lymph node in the thoracic duct?

The first sign of a malignancy, especially an intra-abdominal one, may be an enlarged Virchow’s node, a lymph node in the left supraclavicular area, in the vicinity where the thoracic duct empties into the left brachiocephalic vein, right between where the left subclavian vein and left internal jugular join (i.e., the left Pirogoff angle).

Where does the thoracic duct join the venous circulation?

In the superior thorax, the thoracic duct turns left and empties into the venous circulation at the junction of the left internal jugular and left subclavian veins. The thoracic duct is often joined by the left jugular, subclavian, and/or bronchomediastinal trunks just before it joins with the venous circulation.

Where is the bicuspid valve located in the thoracic duct?

There is a bicuspid valve located at the junction of the thoracic duct with the draining vein (e.g. left internal jugular vein or left subclavian vein depending on anatomical variations), which prevents backflow of venous blood into the lymphatic system.