URINARY SYSTEM. '273 



fauces, palate, &c., also run to the sublingual and guttural glands, 

 in which they unite with the superficial. From these two groups 

 of glands, through which pass the lytnphatics of the head, depart 

 several large branches, two or three of which descend upon the 

 anterior surface of the trachea ; others follow the passage of the 

 deep and subcutaneous veins, unite with those of the neck, and 

 descend to the front of the thorax. Almost all these vessels ter- 

 mitiate in the thoracic duct ; some lew alone on the right side 

 ending in the riglit axillary trunk. 



4. Lymphatics of the Left Fore Extremity. 



The lymphatics of this member present the same disposition 

 as those of the posterior limbs, and are divided into superficial 

 and deep-seated. The former, consisting of divers ramifications, 

 accompany the superficial veins; the more considerable of them 

 forming a plexus which accompanies the cutaneous (superficial 

 brachial) vein of the limb. The deep vessels originate from the 

 foot, muscles, and bones, pursue the divisions of the deep veins, 

 and plunge into the axillary glands, wherein they unite with the 

 superficial, and whence they all proceed to the thoracic duct. 



The right terminating Trunk of the Lymphatics. 



This very short lymphatic canal is obliquely situated at the 

 entrance of the thorax, upon the transverse process of the last 

 vertebra of the neck, extending in a direction from above down- 

 ward and from without inward, and terminating most commonly 

 in the right axillary vein ; though in some instances it joins the 

 thoracic duct, or else ends close by the side of it. — This lesser 

 trunk is formed by the lymphatics coming from the right axil- 

 lary glands, and by some from the right lung, and right side of the 

 neck and trachea. 



Section VII. 

 URINARY SYSTEM. 



COMPRISING THR KlDiNEVS, RRNAL CAPSULES, UKETEKS, 

 AND BLADDER. 



OF THE KIDNEYS. 

 THE kidneys are two ovoid reddish bodies, occupying the 

 lumbar regions of the abdomen, performing the function of the 

 secretion of urine. 



