THE MUSCLES OF THE BACK. 



443 



INSERTION OF STERNO- 



MASTOID 



SPLENIUS CAPITIS 

 LONGISSIMUS CAPITIS 



SEMISPINALIS CAPITIS 

 (thrown laterally) 



Third occipital nerv 



SPLENIUS CAPITIS 



LONGISSIMUS CAPITIS 



TRAPEZIUS 

 SEMISPINALIS CAPITIS 

 Greater occipital nerve 

 OBLIQUUS CAPITIS SUPERIOR 

 RECTUS CAPITIS POSTERIOR MAJOR 

 RECTUS CAPITIS POSTERIOR MINOR 

 Vertebral artery 

 Suboccipital nerve 

 Posterior arch of atlas 

 OBLIQUUS CAPITIS INFERIOR 

 Posterior ramus of second cervical nerve 



Posterior ramus of third cervical nerve 



Deep cervical artery 



Posterior ramus of fourth cervical nerve 



SEMISPINALIS CERVICIS 



FIG. 394. THE SUBOCCIPITAL TRIANGLE OF THE LEFT SIDE. 



Lying in contact with the vertebral laminae, the muscle is covered in the neck 

 and back by the semispinalis, and in the loin by the sacrospinalis muscle. 



Attachment of 



interosseous 



sacro-iliac 



ligaments 



Glutseus maximus (origin) 

 FIG. 395. MUSCLE -ATTACHMENTS TO THE SACRUM (Dorsal Aspect). 



