THE MAMMARY GLANDS. 



783 



of yellow fat, itself lobulated by sheaths and processes of 

 tough areolar tissue (fig. 246) connected both with the skin 

 in front and the gland behind ; the same bond of connec- 

 tion extending also from the under surface of the gland to- 



Fig. 246.* 



the sheathing connective tissue of the great pectoral muscle 

 on which it lies. The main ducts of the gland, fifteen to 



* Fig. 246. Dissection of the lower half of the female mamma 

 during the period of lactation (from Luschka. . In the left-hand side 

 of the dissected part the glandular lobes are exposed and partially un- 

 ravelled ; and on the right-hand side, the glandular substance has been 

 removed to show the reticular loculi of the connective tissue in which 

 the glandular lobules are placed : I, upper part of the mamilla or nipple ; 2, 

 areola ; 3, subcutaneous masses of fat ; 4, reticular loculi of the connective 

 tissue which support the glandular substance and contain the fatty 

 masses ; 5, one of three lactiferous ducts shown passing towards the 

 mamilla where they open ; 6, one of the sinus lactei or reservoirs ; 

 7, some of the glandular lobules which have been unravelled ; f, others 

 massed together. 



