MAMMARY GLANDS. 75T 



The fatty tissue surrounds the surface of the gland, and occupies the intervals 

 between its lobes and lobules. It usually exists in considerable abundance, and 

 determines the form and size of the gland. There is no fat immediately beneath 

 the areola and nipple. 



Vessels and Nerves. The arteries supplying the mamma3 are derived from the 

 thoracic branches of the axillary, the intercostals, and internal mammary. The 

 veins describe an anastomotic circle round the base of the nipple, called, by Haller, 

 the circulus venosus. From this, large branches transmit the blood, to the cir- 

 cumference of the gland, and end in the axillary and internal mammary veins. 

 The lymphatics run along the lower border of the Pectoralis major to the axillary 

 glands. The nerves are derived from the anterior and lateral cutaneous nerves of 

 the thorax. 



