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si8 A N A T nius and fi:erno-mafloid«us of the fame fide, when thefe two a<5t together; and they may likewife be of ufe to preferve the capfular ligaments to which they adhere. The fmall accefibrii, when they are, found, have the fame ufes with the mufcles to which they are fupernumerary. Sect. XV. Of the Vertebral Muscles. LONGUS COLLI. This vertebral mufcle is made up of feveral others," fituated laterally along the fore-fide of all the vertebrae of the neck, and fome of the upper vertebrae of the back. It may be dividedl intO two portions; one fuperior, confiding of oblique converging mufcles ^ and one inferior, compofed of oblique diverging mufcles. The fuperior portion is covered by the redtus anticus longus of the head. The mulcles, of which it confifts, are fixed below to all the tranfverfe apophyfes that lie between the firft vertebra and the laft. From thence they run up obliquely, and are inferted in the anterior eminence of the firft vertebra, and in the bodies, of the three following. The inferior portion appears aimed freight, and yet all the mufcles that comppfe it are diverging, or directed obliquely outward. They are fixed below to the anterior lateral part of the body of the lad vertebra of the neck, and of the fird three of the Back, and fometimes of more. From thence thpy run upward, and a little obliquely outward, and are inferted near the tranfverle apophyfes of all the vertebra of the neck, except the fird and lad. TRANSVERSALIS COLLI MAJOR. Th i s is a long thin mufcle, placed along all the tranfverfe apophyfes of the neck, and the four, five, or-fix upper apophyfes of the back, between the complexus major and minor. It is compofed of feveral fmall mufcular fafciculi, which run direftly from one or more tranfverfe apophyfes, and are inferted fometimes in the apophyfis neared to thefe, fometimes in others more remote, the feveral lafciculi eroding each other between the infertions of the two complex!, which are likewife eroded by them. Transversal is GracilisCollaterals Colli. This is a long thin mufcle, refembling the tranfverfalis major in every thing but fize, and fituated on the fide of that mufcle. Semi-Spinalis fve Transverso-Sfinalis Colli. This name is given to all that fldhy mafs which lies between the tranfverfe and fpinal apophyfes, from the fecond vertebra of the heck, to the middle of the back. It is compofed of feveral oblique convergirtg muf-
O M Y. Part II. cles, which may be divided into externa! and internal. The external are fixed below to the' tranfverfe apophyfes of the fix, feven, eight, or niiie upper vertebrae of the back, by tendinous extremities, which, as they afeend, become flefliy, and mix with each other. Their fuperior infertions in the neck are fix in number, where6f the fird, which is tendinous, is in the feventh fpinal apophyfis ; the red, which are flediy, are in the five next ipinal apophyfes. The internal are fliorter and more oblique than the external, and partly covered by them. They are fixed, by their lower extremities, to the tranfverfe apophyfes of the three of four upper vertebne of the back, and to the oblique apophyfes of the four or five lower vertebras of the neck ; and, by their other extremities, they are inferted in the fix fpinal apophyfes of the neck. S P I N A L E S COLLI MI NO R E S. These mufcles lie between the fix fpinaf apophyfes of the neck, and between-theftad of the neck arid fird of the back, being inferted in thefe apophyfes, by both extremities, on one fide of the poderior cervical ligament, whicE parts them from thhfe on tbl other fide. TRANSVERSALES COLLI MINORES. These are very fmall fhort mufcles, found in the interdices of feveral tranfverfe apophyfes in which they are ' inferted. They are likeWife termed inter-tranfverjaies. S ACRO-LUMBARIS. This is1 a long complex mufele, narrow and thin at the upper part, broad and thick at the lower, reprefenring a kind of flat pyramid. It lies between the fpine and poderior part of all the ribs, and along the baekpart of the regio lumbaris, aljthe way to the os facrum. Through all this fpace, it is clofely accompani. d by the longiffimus dorfi, which lies between it and the fpinal apophyfes of the vertebral, a narrow, fatty, or cellular line tunning between them. It is fixed below, by a broad thin tendinous aponeurofis, to the fuperior fpines of the os facrum, and to the neighbouring lateral parts of that bone; and, laflly, to the external labium of the poderior part of the crida offis iliupi, ad the way to the great tuberofity. From thence this mufde runs upward, and a little laterallys over all the regio lumbaris; the aponeurofis fending off, from its infide, a mais of flefhy fibres, which are divided, from below upwards, into feverai large fafciculi, inferted in all the tranfverfe apophyfes of the loins. Afterwards it rails up obliquely over all the ribs, fometimes as high as the two or -three lowed vertebras of the neck, fometimes higher, and fometimes it ends at the fird vertebra of the back. LONGISSIMUS DO RSI. This is a very complex, long, and narrow mufcle, fomethinj
