726 THE LYMPHATICS IN PARTICULAR. 



mass lodg^ed between the two iliac arteries, and a third placed without, and to 

 the front of, the common iliac ; these two are double. 3. A single agglomera- 

 tion of glandular lobules dispersed around the origin of the posterior mesenteric 

 and spermatic arteries ; these are separate from one another. 



The different masses receive the lymphatics of the pelvis, the emergent 

 branches of the deep inguinal glands, those which come from the iliac glands, 

 some ramuscules from the rectum and large colon, and those from the spermatic 

 cord. 



They are bound to each other by communicating branches, and give rise to 

 several series of emergent branches, which soon collect into one or more trunks 

 that enter the receptaculum chyli. 



2. Deep Inguinal Glands. 



This is a considerable mass of glandular lobules lodged beneath the crural 

 aponeurosis and arch in the interstice between the adductor muscles of the leg, 

 along with the iliac vessels, within which they are placed. 



The form of this group is elongated, and its length may be six to eight 

 inches, or even more ; its superior extremity extends as high as the anterior 

 border of the pubis. It is composed of from fifteen to twenty lobules, which 

 rarely have a uniform colour— some being grey and others brown, or nearly 

 black. 



The afferents are formed by the superficial lymphatics that accompany 

 the internal saphena vein — the radicles of which may be traced beyond the fet- 

 lock- and by the deep satellite vessels of the iliac artery and vein. The efferents 

 proceed to the sublumbar glands, by ascending in the abdomen along the 

 external iliac artery and vein. 



3. SuPEEFiciAL Inguinal Glands. 



These are placed in front of the inguinal ring, at the side of the sheath, on 

 the track of the subcutaneous abdominal artery, where they form a small 

 elongated mass from two and a haK to three inches in length, and are composed 

 of a dozen principal lobules. 



Their afferents, which are very numerous, come from the inner aspect of the 

 thighs, the sheath, scrotum, and the inferior abdominal wall. The efferent 

 vessels, much larger, but less numerous — there are only five or six — ascend in 

 the inguinal canal, accompanying the external pudic artery and the inguinal 

 nerves. They enter the deep inguinal glands, after traversing the inguinal canal 

 in company with the prepubic artery. 



the thorax ; F, G, H, glands receiving the superficial lymphatics of the neck, a portion of those 

 of the limbs, and those of the pectoral parietes ; i, junction of the jugulars; j, axillary veins; 

 K, summit of anterior vena cava ; L, thoracic duct ; M, lymphatics of spleen — N, of stomach — 0, 

 of large colon — S, of small colon ; R, lacteals of small intestine — all joining to form the two 

 trunks, p, Q, which open directly into the receptaculum chyli ; T, trunk which receives the 

 branches of the sublumbar glands, u, to which the vessels of the internal iliac glands, V, the 

 receptacles of the lymphatics of the abdominal parietes, pass ; w, precrural glands receiving 

 the lymphatics of the posterior limb, and which arrive independently in the abdomen; X, super- 

 ficial inguinal glands into which the lymphatics of the mamma:, external generative organs, some 

 superficial trunks of the posterior limb, etc., pass ; Z, deep inguinal glands receiving the super- 

 ficial lymphatics, z', of the posterior limbs. 



