MUSCLES. 97 



Sple'niilS : ligamentum nuchae, spinal processes yth cervical 

 and 6 superior dorsal vertebrae capitis, into mastoid process 

 and occiput; colli, transverse processes 3 or 4 superior cervi- 

 cal vertebrae. [External posterior branches cervical.] 



(4) BACK, FOURTH LAYER, SACRAL AND LUMBAR REGION, I. 



Erec'tor Spi'lffl : sacro-iliac groove, lumbo-sacral tendon, iliac 

 crest, transverse processes sacrum--sacro-lumbalis, longissi- 

 mus dorsi. [External posterior branches lumbar.] 



(5) BACK, FOURTH LAYER, DORSAL AND CERVICAL REGION, TO. 



Sa'cro-hmba'liS : (see above) angles inferior ribs. [Dorsal.] 



AccesSOiiilS ; angles 6 lower angles 6 superior ribs. [Dor- 

 sal.] 



Cervica'liS ascen'dens I 4 or 5 superior ribs transverse pro- 

 cesses 4t.h, 5th, 6th cervical vertebrae. [Cervical.] 



Longis'simus dor'si I see erector spinae, of which it is the lar- 

 ger portion ; inserted (lu;;:bar region) into transverse proces- 

 ses lumbar vertebras; dorsal, t.ps transverse processes of all 

 vertebrae, and 7 to n ribs, between their tubercles and 

 angles. [Lumbar, dorsal.] 



Transversa'liS COl'li: transverse processes, 3d, 4th, 5th, 6th 

 dorsal transverse processes 5 inferior cervical vertebrae. 

 [Cervical branches.] 



Tradie'lO-mastoido'us .' transverse processes 3d, 4th, 5th, 6th 

 dorsal, and articular processes 3 or 4 inferior cervical verte- 

 brae posterior margin mastoid process. [Cervical branches.] 



Spina'llS dor'si : spinal processes ist, 2d lumbar and nth and 

 X2th dorsal vertebrae spinal processes of dorsal vertebra. 

 [Dorsal branches.] 



Spina'liS cervi'cis: spinal processes 5th, 6th cervical (ist, 

 ad dorsal) vertebrae spinal process axis (sometimes 3d and 4th 

 cervical.) [Cervical branches.] 



Complex'US : transverse processes yth cervical and 3 superior 

 dorsal vertebrae, articular processes 4th, 5th, 6ih cervical 

 between superior and inferior curved occipital lines. [Cervi- 

 cal branches, sub-occipital, great occipital.] 



Biven'ter cervi'cis : 2 or 4 tendons from as many superior 

 dorsal vertebrae superior curved occipital line, inside of com* 

 plexus [Cervical branches.] 



(6) BACK, FIFTH LAYER, 8. 



Somispina'lis dor'si: transverse processes of vertebrae between 

 Xith and 5th dorsal spinal processes of 6th and jth cervical 

 and 4 superior dorsal vertebrae. [Dorsal branches.] 



Semispina'liS COl'li: transverse processes 4 superior dorsal and 

 articular processes 4 inferior cervical vertebrae spinal pro- 

 cesses ad, 3d, 4th, 5th cervical. [Cervical branches.] 



