94 



HJSTOLOG Y 



covered with a basement membrane, and are protected from undue 

 irritation by the epidermal layers. 



The subcutaneous cellular tissue (upon which the true skin 

 rests) consists of fibrillated connective tissue with elastic ele- 

 ments, from which strong interlacing bands are formed. These, 

 in the deeper parts, form septa which support lobules of adipose 

 tissue. These isolated collections of adipose tissue, when elon- 

 gated and placed vertically to the surface, constitute the fat- 

 columns. 



FIG. 67. VERTICAL SECTION SHOWING THE DERMA, OR TRUE SKIN. INJECTED 

 PARTLY DIAGRAMMATIC. 



A. Line of junction of derma with epidermis. 



B. Capillaries distributed to papillae. 



The blood-vessels supplying the skin may be seen in vertical 

 sections, in the subcutaneous tissue. Branches from these are 

 sent to the papillae, where they terminate in delicate, interlacing 

 loops of capillaries. 



Medullated nerves are also sent to the papillas ; and in certain 

 locations they may be seen to terminate in tortuous structures 

 the tactile corpuscles. Varicose nerve- fibrils have been traced 

 between the cells in the rete mucosum of the epidermis. 



