348 SPECIAL ANATOMY. 



of duct, thoracic.; the place is called Ampulla s. cisterna (chyli) 

 Pecqueti, s. receptaculum chyli. Course : tortuous, before and 

 through the hiatus aorticus upwards, rather to the right on the 

 anterior surface of the bodies of the vertebrse, to the right of aorta, 

 to the left of the v. azygos. Passing almost in the central line as 

 far as to the front of the fourth dorsal vertebra, it inclines to the 

 left behind the aorta, on the left side of oesophagus, passes out on 

 the inner and posterior side of art. subclavia sinistra from the 

 thorax, and curves, before the seventh cervical vertebra and behind 

 the v. jugular, intern, sinistra, in an arched form outwards and 

 forwards to the angle between v. jugularis inter.na and subcla- 

 via sinistra, where, provided with a valve, it opens singly or divided. 

 Situation : the inferior part in the right, the superior in the left 

 mediastinum. 



602. 2. Truncus lymphaticus dexter s. major, the right 



lymphatic trunk, 



receives the lymphatics of the right half of the head, neck, chest 

 (the right lung, the right heart, and half of the liver and pharynx), 

 and the right superior extremity ; is in connexion by means of 

 branches with ductus thoracicus. It arises : about one inch above 

 the angle of 'vv. jugularis interna and subclavia dextra, in which 

 it opens, from three small trunks, in which the lymphatics of the 

 right arm from without, those of the right half of the chest from 

 within, those of the head and neck from above, flow together. 

 The small trunks sometimes open into the veins (subclavia jugu- 

 laris). 



603. II. The Lymphatics and Lymphatic glands of the inferior 



half of the body. 

 I. Inferior extremity. a. Lymphatic glands : 



1. Glandula tibialis antica, lies before and above lig. interosseum; is not 

 always present ; is formed by the deep lymphatics of the foot. 



2. Glandules poplitcece, two to four small glands in the poplitaeal region 

 along the vasa poplitcea, formed by the deep lymphatic glands. 



3. Gl. inguinales (seven to twenty), surrounding the opening of the v. 

 saphena magna, and are situated below the lig. Pouparti, in the fossa 

 (fossa ovalis) between m. psoas and pectineus on the thigh, three inches 

 in length, two in breadth. The deep (two, three to seven) are some- 

 times wanting, they are situated behind \hefascia cruralis (round about 

 the vasa cruralia), and unite through the opening in the last (where the 

 v. saphena perforates) with the superficial, which lie upon the v. saphena 

 audproc. falciform., also, immediately with the gl. iliacce by means of 

 the femoral ring. 



