THE SKIN. 



347 



The inner root sheath is less conspicuous, and in good 

 sections will be found to consist of an outer layer of 

 two rows of non-nucleated elements, representing 

 cornified epithelial cells and called Henle's layer, and 



Hair shaft. 



Epidermis. 



Sebaceous gland. 



Fat cells. Hair papilla. 



Fig. 245. Cross section of the human scalp. 



internal to this about two rows of nucleated cells, 

 called Huxley's layer. These layers are absent from 

 the upper half of the follicle. Internal to Huxley's 

 layer, and in direct contact with the root of the hair, 

 is the root sheath, which has much the same structure 

 as the hair cuticle. Many scaly plates are imbricated 



