G08 



ORGANS OF THE SENSES. 



tubes of epidermis may be drawn out, and form nipple-shaped projections on its 

 under surface. According to Kolliker, a layer of non-striated muscular fibres, 

 arranged longitudinally, is found between the areolar and epithelial coats of the 

 ducts of the larger sweat-glands, as in the axilla, root of the penis, on the labia 

 majora, and around the anus. 



The contents of the smaller sweat-glands are quite fluid ; but in the larger 

 glands, the contents are semi-fluid and opaque, and contain a number of colored 

 granules, and cells which appear analogous to epithelial cells. 



THE TONGUE. 



The tongue is the organ of the special sense of taste. It is situated in the 

 floor of the mouth, in the interval between the two lateral portions of the body of 



Fig. 298. Upper Surface of the Tongue. 



TiTffo 



FIC, 299. T/ie 3 kinds of PAPILLA- 

 Tuny f form 



A-l? 



the lower jaw. Its base or root is directed backwards, and connected with the 

 os hyoides by numerous muscles, to the epiglottis by three folds of mucous mem- 

 brane, which form the glosso-epiglottic ligaments, and to the soft palate and 

 pharynx by means of the anterior and posterior pillars of the fauces. Its apex 



