ANATOMY IX A NUTSHELL. 



271 



10 Biventer cervicis. 



11 .Spinalis colli. 



Fifth layer. 



1 Semispinalis dorsi. 



2 Semispinalis colli. 



3 Multifidus spinae. 



4 Rotatores spina?. 



5 Supraspinales. 



6 Interspinales. 



7 Extensor coccygis. 



8 Intertransversales. 



9 Rectus capitis posticus major. 



10 Rectus capitis posticus minor. 



11 Obliquus capitis superior. 



12 Obliquus capitis inferior. 



All these muscles in the fifth layer 

 are supplied by the internal divisions 

 of the posterior branches of the spinal 

 nerves in their respective regions, ex- 

 cept the Recti andObliqui, and they 

 are supplied by the sub-occipital. The 

 Inferior oblique also takes the great 

 occipital nerve. 



CUTANEOUS 



WITH OCCIPITALIS Ml 



SUPERIOR OBLIQUE 

 COMPLEXUS 



RECTUS CAP. 

 POSTERIOR DIV 

 ST. CERVICAL 



PLATE CXI I. 



TO SCALP 



AURICULAR 



INF. OBLIQUE 

 POSTERIOR DIVISION OF 

 -ND. CERVICAL 



POSTERIOR DIVISION OF 

 RD CERVICAL 



SPLENIUS ssss^-ti 

 COMPLEXUS. =3^ 

 TRACHELO-MASTdlO 



SKIN OVER TRAPEZIUS 



The Posterior Cervical Plexus. 

 Muscles of the Third L wi:i;. 



Serratus posticus superior. — Description. This muscle is quadrilateral 

 and has a serrated outer margin. The inner half of the muscle is tendinous and 

 theouter half isfleshy. It takes its name from its serrated edgeand its position. 



Origin. — (1) Ligamentum nuchse, (2) spinous processes of the seventh 



