454 



ANATOMY FOR NURSES [Chap. XXI 



openings of the milk ducts, and is surrounded by a small circular 

 area of pink or dark colored skin, which is called the areola. The 

 areola is dotted over with projections formed by the sebaceous 

 glands. They are compound glands, and are divided by connec- 

 tive tissue partitions into about twenty lobes, each of which 



PCCTORALIS MAJOR 



fibrous septum 

 guano substance 



Kdipose tissue 



THIRD RIB 



AREOLAR TISSUE 



FIRST 

 RIB 



SECOND 

 RIB 

 PCCTORALIS 



MINOR 

 INTERCOSTALES 

 SHEATH OF PEC- 

 TORALIS MAJOR 



SUPERFICIAL 

 FASCIA 



FOURTH RIB 



LUNG 



ADIPOSE TISSUE 

 HORIZONTAL PLANt 

 OF NIPPLE 



SIXTH RIB 



Fig. 209. — Bight Breast in Sagittal Section, Inner Surface of Outer 

 Segment. (Gerrish.) 



possesses its own excretory duct, which as it approaches the top 

 of the breast dilates and forms a small reservoir in which milk can 

 be stored during the period when the gland is active. Each duct 

 opens by a separate orifice upon the surface of the nipple. The 

 lobes are subdivided, and the small lobes, or lobules, are made up of 

 the terminal tubules of the duct, which lie in a mesh of fibrous 

 areolar tissue containing considerable fat. 



