CEEVICAL LYMPHADENITIS. 287 



fascia, is that which is primarily concerned with the lower 

 extremity, and is affected in inflammations of the regions just 

 mentioned. They also receive lymph from the perineum, and the 

 inner portion of the buttock. The other, the horizontal set, lying 

 superficial to the aponeurosis of the external oblique muscle 

 above Poupart's ligament, is that which receives lymph from the 

 following parts the inner glands from the external genitals of 

 both sexes, including all those structures lying superficial to the 

 symphysis pubis and the deep perineal fascia (thus it is here 

 that the common bubo resulting from venereal disease is seen), 

 the middle glands from the lower half of the abdominal wall, and 

 the outer glands from the buttock. 



Cervical Region. Perhaps no part of the body is more prone 

 to be the seat of lymphadenitis than the neck. There are numerous 

 sets of cervical glands, but it must be confessed that their arrange- 

 ment and the number of nodes in each is by no means regular 

 or constant. Still, certain groups can be made out, and a 

 knowledge of them is of great practical utility. Keviewing these 

 from above downwards, they may be given as anterior auricular, 

 posterior auricular, occipital, submandibular, sub-mental, super- 

 ficial cervical, deep cervical, retro-pharyngeal and supra-clavicular. 

 When a patient is seen with enlarged glands in the neck, the 

 region where these glands are placed should be an indication as 

 to the source from which the irritation causing their increase in 

 size has been derived. On the other hand when a patient presents 

 himself in whom there is some disease of the lips, the tongue, 

 the scalp, &c., which may lead to implication of the lymphatic 

 glands, it is needful to know which set to examine to determine 

 whether or not such involvement exists. Thus it is convenient 

 to review here the groups of glands and see where they derive 

 their lymph, and then under the various diseases to state to 

 which set the lymph passes. 



The anterior auricular glands, situated in front of the ear, and 

 upon and within the substance of the parotid gland, derive lymph 

 from the frontal and the parietal portions of the scalp, and the 

 upper part of the face. The posterior auricular, placed behind 



