Organs of Sense. 



THE Organs of the Senses are five in number, viz., those of touch, of taste, 

 of smell, of hearing, and of sight. The skin, which is the principal seat of the 

 sense of touch, has been described in the Introduction. 



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 



Fig. 362. Upper Surface of the Tongue. 



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

 the os hyoides by numerous muscles, with the epiglottis by three folds of 

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