MIVCLK* <>!' I Hi: TIU'.\K. 211 



The rhiinJ'i'iil'iiii is liilid, as in tin- smaller quadrupeds. Less developed than iu these 

 animals, the <m>nil<iri is only fixed in front to the four first cervical vertebrae. 



In Man, Hi.' .<y./. /,///.< is large, but by its insertions it resembles that of Solipeds. The 

 great cunifilfXitK, thick and broad nl>ove, in incompletely divided into two fleshy bodies, 

 which arc attached, superiorly, to the sides of the external occipital crest. The small 

 f<-nij>h.r>i< is not fixed into the axis and atlas, its superior extremity passing directly to 

 the mastoid process. 



Then- is nothing particular to note regarding t\\e straight posterior and oblique muscles 

 of (he head ; the differences they offer in their form are allied to the conformation of the 

 - in this region. 



Of the two small serrated muscles, that which corresponds to the anterior serrated of 

 anima \ hi^'h ; for it is attached by an apoueurosis to the upinous processes of 



the three first dorsal vertebra;, the seventh cervical, and the cervical ligament. 



There are found in Man, lying along the vertebral furrows, several muscles which 

 r- pi. .-. nt the Hitt-*i>iniili!i and the common intercostal of golipeds. Thus the common 

 'ivcrinir the lumbar vertebrae behind, is prolonged by two series of fleshy and ten- 

 dinous fasciculi: one forms the irr/<-/<//i</i//s, which res, mbles the common intercostal 

 of animals; the other, the limy <//>/, represents the inferior branch of the ilio-spinulis. 

 The sujH-rinr branch of the latter is found in the transversalig mil i. 



Lastly, there are also seen in Man a transverse spinal and intertransverse muscles, 

 which correspond : the first, to the transverse spinou* of the back and loins and transverse 

 t}>iniis of the neck ; the second, to the intertransversales of the loins of the domesticated 



B. Muscles of the Neck. 



The mastoido-humeralis is not present in Man, being peculiar to quadrupeds ; but we 

 should see a portion of its fasciculi in the cleido-mastoideus muscle, and in the clavicular 

 portions of tin: tniffzimi and deltoid. 



The sterno-mastoideus corresponds to the stemo-maxillaris of animals; as in the Dog, 

 it is inserted into the external face of the mastoid process and the external two-thirds of 

 the superior occipital curved line. Below, it commences by two fasciculi one from the 

 sternum, the other from the clavicle. We have already alluded to this clavicular 



fa.-cieilllis. 



The xti ruo-Jii/oideus and sterno-thyroideus are large and well developed, resembling in 

 their disposition those of the smaller animals. It is to be noted that the sterno-hyoideus 

 I. a\. - t. , i-ternum, the first costal cartilage, and the internal extremity of the clavicle. 

 The Mxtpulo-hyoideus is digastric. The anterior great straight muscle of the head is 

 attached to iour cervical vertebra?, as in Ruminants and the Pig. The anterior small 

 straight, the lateral small straight, and the long muscle of the neck, comport themselves as 

 in the Mueller aniiui.ls. The anterior scalenus is very developed, for it is attached to the 

 six last cervical vertebrae. 



SUBLUMBAB, OK INFERIOR LUMBAR REGION. 



The muscles of this region are deeply situated at the inferior face of the 

 lumbar vertebra) and the ilium, concurring to form the roof of the abdominal 

 c:ivity, and are in more or less direct contact with the viscera contained m 

 th ;it cavity. They are nine pairs. Throe have received the generic name of 

 PHOOS, and are of largo volume ; they are maintained by a strong aponeurosis. 

 the Hini' fascia, and are distinguished as the great psoas, iliac psoas, and small 

 psoas. A fourth is named the square muscle of the loins (quadratus lumborum), 

 The other five, placed between the transverse processes of the lumbar vertebrae, 

 represent, in consequence of their connection with these kind of fixed ribs, 

 ;iblo intercostal muscles ; these are the intertransverse muscles of the loins. 



Preparation. 1. Place the subject in the first position ; open the abdominal cavity l>y 

 completely removing it- inferior walls; empty the cavity of the viscera it contains, and 

 excuse the ili iphragm, as that muscle prevents the anterior extremity of the great and 

 small peoaa muscles being seen. 2. First ntudy the iliac fascia, its form, relations with 

 :.g abductor <>f the leg, its attachments, its continuity with the tendon of the small 

 paoas, and the expansion reflected from the ujxineurosis of the great abdominal oblique 

 i.-e the three psoas muscles by removing the iliac fascia, the two adduc- 

 tors of the leg, and the three adductors of the thigh. 4. Bemove the paoaa muscles for 

 the dissection of the qiiaduitu.i and iutertran3vers;tl. - 



p 2 



