THE LYMPH VESSELS AND GLANDS 



631 



behind the paramastoid process. There are usually two of considerable size on 

 either side. 



The middle cervical lymph glands form a group on the mastoido-humeralis 

 on the course of the external jugular vein. 



The prescapular lymph glands are situated at the anterior border of the 

 anterior deep pectoral muscle imder cover of the trapezius and omo-transversarius. 



The prepectoral lymph glands are reddish in color and usually three in number. 

 The largest is placed centrally under the trachea; the others are situated on the 

 l)rachial vessels as the>' turn around the first rib. 



The axillary l5anph glands are usually absent, but very small nodes may be 

 found near the insertion of the latissimus dorsi. Cubital glands are not present. 



Fig. 484. — Stomach and Part of Intestine of Pig, Spread Out. 

 a, Pyloric portion of stomach; 6, duodenum; c, jejunum; rf, caecum; e, /, colon; g, pancreas; /i, epiploic 

 foramen (of Winslow) ; j, portal vein; A.-, hepatic lymph glands; Z, gastric lymph glands; m, oesophagus. (After 

 Edelmann.) 



The thoracic lymph glands comprise: (1) a gland of considerable size on the 

 first segment of the sternum; (2) about half a dozen reddish glands along the upper 

 face of the thoracic aorta; (3) several glands along the lower face of the trachea; 

 (4) the bronchial lymph glands ; one of these lies on the bifurcation of the trachea 

 and another at the apical bronchus of the right lung (Fig. 371). 



The lumbar lymph glands are scattered along the abdominal aorta and the vena 

 cava. Those placed near the hilus of the kidney are often designated renal. 



The mtemal iliac lymph glands are rounded and relatively large. They 

 comprise: (1) three or four glands situated on and between the origin of the cir- 

 cumflex iliac and the external and internal iliac arteries; (2) a gland in the angle 

 of divergence of the internal iliac arteries. 



