304 DERMOTD SYSTEM. 



Development of the Dermoid System, 



Q. At what period of life does most blood enter the skin ? 



.#. In the foetal period. In advanced life there is least 

 blood in the dermoid texture. 



,(?. What evidence is there that the organic vital forces 

 of the skin in the foetus are active? 



#. The formation of the unctuous viscid fluid which is 

 seen on the foetal skin. Perhaps the liquor amnii is form- 

 ed and absorbed by the foetal skin. 



Q. What do you infer from the foetal skin remaining 

 livid some time after birth ? 



t/#. That the pulmonary function is not free. 



Q. At what period of life is there least sweating? 



*ft. During childhood and infancy. 



Q. Why does the skin radiate active sympathies more 

 freely when it is sweating than when dry? 



.#. Because, while perspiring, its organic vital forces 

 are most active; and hence these sympathies. 



Q. What substance predominates in the skin of child- 

 hood and of age? 



#. In early life, , gelatine predominates; and in age, a 

 fibrous substance. 



Q. Why is the skin a more frequent source of disease 

 than other textures? 



*#. Because, from its exposed situation, it is liable to 

 so many variations of its vital forces. 



Q. Why is it that touch is more actively employed in 

 infancy and childhood than in old age? 



/?. Because every thing is novel to the young, and 

 known to the aged. 



