194 



MUCOUS MEMBEANES 



Branched saccular glands include the larger of the sebaceous 

 glands of the skin, in which several saccules pour their secretion 

 into a common duct, and the Meibomian glands of the eyelids in 



ti- 



FIG. 177. FROM THE SKIN OF A CHILD, SHOWING BRANCHED, SACCULAR, SEBACEOUS 



GLANDS. 



a, hair follicle into which the duct of a gland opens ; 6, secreting saccules ; c, hair 

 follicles; d, horny portion of the cutaneous epithelium; e, germinal portion of same; 

 /, connective tissue of the skin; <7, blood vessel. Hematein and eosin. Photo, x 83. 



which a considerable number of saccules open into an axial canal 

 by which the secretion is conveyed to the terminal duct. The 

 structure of each glandular saccule of this type is identical with 

 that of a simple saccular gland. 



Compound Saccular Glands. This type includes only the mam- 

 mary gland. It consists of a system of tubular ducts which pos- 

 sess ampullary dilatations and many branches. Its ducts terminate 

 in small saccular alveoli which have a thin epithelial lining. 



