684 



THE EAE 



open either upon the free surface of the skin or into the adjacent portion 

 of the hair follicles. 



THE CERUMINOUS GLANDS 



The ceruminous glands resemble in structure the sweat glands of 

 other portions. They are coiled tubular glands which open upon the 

 surface of the skin by means of a narrow duct. The coils of their se- 

 creting portion are lined by columnar cells with spheroidal, basally 



FIG. 572. FROM THE EXTERNAL ACOUSTIC MEATTTS OP MAN. 



a, sebaceous gland; 6, ceruminous gland; c, cartilage. Hematoxylin and eosin. 

 X 15. (After Sobotta.) 



situated nuclei and a clear cytoplasm containing many small brownish 

 granules of pigment and a few fatty particles. The cytoplasm is often 

 diffusely colored by the brownish pigment. Between the lining cells 

 and the basement membrane appear slender fusiform elements re- 

 sembling similarly placed elements in the sweat glands, and likewise 

 interpreted as muscle cells. The secretion of these glands, the cerumen, 

 in addition to the pigmented and fatty secretion of the glands, contains 



