BOOK III. 



PART II. 



Special Anatomy of Muscles* 



CHAPTER I. 



MUSCLES OF THE HEAD AND NECK. 

 SECT. I. MUSCLES OF THE FACE. 



Occipito-Frontatis. 



THE occipito-frontalis, a single muscle, consists of two symme- 

 trical parts, coming from the back of the head, and inserted into 



* I may here mention, once for all, in regard to the muscular system, that 

 though the very rigid mode of description adopted by anatomists may lead the 

 inexperienced student to infer that there are no departures from a common 

 standard, and that one invariable type for the muscles prevails in all human be- 

 ings; yet there will be found upon actual dissection occasional disagreements 

 with the best established descriptions, and which it is of some use to know. 

 Some of these departures are common enough, others very rare; and they con- 

 sist either in a deficiency or a redundancy of muscles. Wishing not to give false 

 ideas of their importance and frequency, and, indeed, fearful of doing so, they 

 are purposely introduced subordinately in notes: many of them have been ob- 

 served by me personally, others are recorded in different medical writings, and 

 for the remainder I am indebted to the learned treatises on anatomy of T. Soem- 

 mering and J. F. Meckel. 



No part of the muscular system varies more in different subjects than the mus- 

 cles of the back; but, as it would be useless to enter fully on such trivial details, 

 they have been passed by, except in a few instances. 



