CHAP, v.] 



THE CATS MUSCLES. 



Other miiiov divisions of the erector spinoj bear tlic names ■ir/iii- 

 spina/is, mu/f(fidt(S spiiue, roUdores spince, intcr-spinaks, and liitcr- 

 tratm-crsales, and have their fibres directed as follows : at first, from 

 the transverse processes to the neural spines ; the second, from 

 mctapophyses (or the parts which serially correspond A\ith the met- 



A.— ISTERXAL ASPIXT OF StICRXLM AND CoSTAl. CaRTILAOES— MuSCLES OF LiaX SID!' Br.IN> 



ALMOST ALL RKMOVED. 



Xo. 1 to l;i. The libs. 



V, VI. The fifth aud sixth stcviKjlinv 



il. Diuijhragin. 



<-. Internal intPi'c-ostals. 



i. External iuterc-ostals. 



'in. Internal (ibliqiie. 



si«. Stenio-Miastoid. 



s'. Scalenus sccundns. 



ts. Triangalaris sterni. 

 X. Xiphoid oartilage. 



The small figure below represents on one side 

 the sternal ends of the cartilages of the eighth 

 and ninth ribs, and on the other side thi' 

 .sockets (/) for the cartilages of the eiglith 

 and ninth of the other side. 



]3._Artici'lati"n-s of (kktai.v Costal Cartilages and Sterxum. 



apophyses,) to neural lamimc in front of them ; the third, from the 

 transverse processes to the neural laminfe next in front of them ; 

 the fourth, from neural spine to neural spine, and the fifth and last, 

 from one transverse process to another. 



If these various muscles of both sides of the body act, they flex 

 the spine vertically — as w^hen the animal bounds along. If those of 



