420 



THE MUSCULATURE 



Structure and insertion. — The fibre-bundles diverge to form a flat, triangular sheet inserted 

 below the medial third of the inferior nuchal line of the occipital bone on the inferior surface of 

 the squama occipitalis. 



The obliquus capitis inferior. — Origin. — From the upper part of the side of the spine of 

 the epistropheus (axis). 



Structure and insertion. — The fibre-bundles form a fusiform belly which is inserted by a 

 short tendon into the lower part of the tip of the transverse process of the atlas. 



Fig. 383. — The Transverso-spinalis. 



Semispinalis capitis 



Obliquus capitis superior 

 Rectus capitis posterior major 



Rectus capitis posterior 

 minor 



Obliquus capitis inferior 



Multifidus spina 



Semispinalis cervicis 

 Ilio-costalis cerviciS' 



Longissimus dorsi 



Seventh cervical vertebra 



Levator costae 



Longissimus dorsi 

 Ilio-costaliS' 



Obliquus internus 



Ventral layer of 

 lumbodorsal fascia 



Ilio-costalis 



The obliquus capitis superior. — Origin. — -From the buck (jf tlic upi)er i)art of the trans- 

 verse process of the at]a.s. 



Structure and insertion. — The fibre-bundles diverge to form a flat, triangular muscle, in- 

 serted into the lateral third of the inferior nuchal line of the occipital bone, and above the lateral 

 part of the insertion of the rectus capitis posterior major. 



