208 



FIBROUS SYSTEM. 



. Into those for general and those for partial 'cover- 



ing. 



Q. Where are those for general covering found? 



.#. Around the extremities, where they tie down the 

 muscles. These aponeuroses are thick and strong in pro- 

 portion to the size and action of the muscles they cover. 

 When it is otherwise, as in the gastrocnemii muscles, 

 these muscles are liable to a species of dislocation and 

 cramp. 



Q. What do you mean by the tensor muscles? 



/?. They are muscles inserted into the aponeuroses for 

 general covering, to tighten or relax them, as the situa- 

 tion of the limb may require. 



Q. With what tissue do these general aponeuroses pe- 

 culiarly intermix? 



/#. In some parts of the limbs they are gradually 

 merged or lost in the cellular tissue. 



Q. What are the uses of these aponeuroses? 



<&. Besides confining the muscles, they by compression 

 favour the circulation of the red and white fluids. Hence 

 dropsy is rarer and later in forming in the sub-aponeurotic 

 cellular tissue than in the superficial. 



Q. Where are the aponeuroses for partial covering 

 found ? 



/#. On the hand, on the back and abdomen, some of 

 the muscles of which they cover and aid. 



Q. How are the aponeuroses of insertion divided ? 



A. Into those with a broad surface, those in the form 

 of an arch, and those with separate fibres. Those in the 

 arched form are to allow vessels to pass under them. 



