LYMPHATIC SYSTEM. 131 



the number varies. Hitherto this lymphatic has been a single 

 trunk ; but after it has passed these glands it commonly divides 

 into two or three branches, which still accompany the crural 

 artery, and pass with it through the perforation in the triceps 

 muscle. This muscle is divided in the preparation from which 

 this figure was taken, in order to give a better view of the 

 lymphatics ; and the cut ends of the muscle appear at F, F, 

 though not very distinctly, from their being shrunk by drying. 

 The lymphatic vessels having perforated the triceps, pass up 

 with the artery, (as is seen at k, I) and enter a gland m which 

 is deeper-seated than those which appear in the groin in Plate I, 

 fig. 1 ; from this gland they pass into the superficial glands, 

 represented in Plate I, fig. 1 f t f, g, g, where the lymph of the 

 deep-seated, and of the superficial lymphatics is mixed, and is 

 conveyed into the body by the vessels seen just above in the 

 same plate. At this part likewise the lymph from the genitals 

 is mixed with that brought by the two sets of lymphatics from 

 the lower extremities, and the whole enters the abdomen by 

 the plexus of vessels represented Plate I, fig. 1, at m, and a 

 part of it at Plate II c. 



The lymphatics of the lower extremities having now reached 

 the trunk of the body, and having passed under Poupart's liga- 

 ment, appear upon the sides of the ossa pubis near the pelvis at 

 c, c Plate II. A part of them passes up along with the iliac artery 

 upon the brim of the pelvis, and another part dips down into the 

 cavity of the pelvis, and joins the internal iliac artery near the 

 sciatic notch. At this place they are joined by the lymphatics 

 from the contents of the pelvis, particularly from the bladder and 

 the vesiculae seminales in the male, and from the uterus in the 

 female, and there are likewise a few branches which pass through 

 the sciatic notch from the neighbourhood of the glutei muscles. 

 The lymphatic vessels of the uterus, like its blood-vessels, are 

 much enlarged, and therefore easily distinguished, in the preg- 

 nant state of that organ. At this part, where so many lym- 

 phatic vessels join, there is commonly one or two glands. 



Besides those lymphatic vessels which dip down into the 

 cavity of the pelvis on the inside of the external iliac artery at 

 c, c Plate II, there are others which keep on the outside of 

 that artery upon the psoas muscle, some of which are seen on 

 the left side in the same Plate at d ; of these one part passes 



