444 GENERAL ANATOMY. 



without joining to it the word muscle, designates in this 

 nomenclature, the occipito frontalis. Vicq. d'Azyr had 

 equally directed his views to the necessity of reforming the 

 anatomical language; he did not execute his project. Doctor 

 Barclay also engaged in this object, and directed his special 

 attention to giving proper and precise names to the different 

 regions of the body. M. Schreger* has collected together 

 most of the anatomical names employed up to his time, in a 

 voluminous synonymy, where is found almost as many names 

 to some organs, as there are treatises on anatomy. The fear 

 of contributing to the confusion, which is augmented almost 

 every time that a new treaty makes its appearance, ought to 

 induce the anatomists to make use of names already in use, in 

 choosing from among them those that are best known, the 

 most simple and the most significant. 



711. According to their situation and their destination to 

 move any particular part, the exterior muscles are distin- 

 guished by those of the skeleton and the bones, by those of 

 the larynx, and by those of the organs of the senses and the 

 skin; several exterior muscles belong also to the orifices of 

 the digestive, respiratory, genital and urinarypassages, and 

 are there insensibly confounded with the interior muscles. 



The muscles of the skeleton are situated in the trunk and 

 in the members: in the members they form considerable 

 masses, and are elongated; in -the trunk they are broad, nu- 

 merous in the back and the abdomen, less so in the thorax, 

 and still less so about the cranium. 



712. The muscles vary greatly in volume, some are great 

 or voluminous, others are moderate in size, others small, and 

 others again very small. 



713. All the muscles are in pairs, except the diaphragm, 

 the sphincters of the mouth and anus, the arytjienoidasus, 

 and often the levator uvulae; all, except the diaphragm, are 

 symmetrical, or similar on both sides, with the slight differ- 

 ence ordinarily observable in the volume of the two lateral 

 sides of the body. 



* Synonyjala anaiomica, aud. Chr. II. Th. Schreger. Furthii, 180. . 

 8vo. 380 pages. 



