THE DISSECTION OF THE BACK 



163 



the external occipital protuberance, the whole length of the 

 ligamentum nuchae, the seventh cervical spine, the tips of 

 all the thoracic spines and the corresponding supraspinous 

 ligaments. 



In the region of the seventh cervical spine the origin is more aponeurotic 

 than elsewhere, and the fine tendinous fibres of the muscles of the two sides 

 form an ovoid aponeurotic area some two inches in length. 



Galea 



aponeurotica" 



Great occipital 

 nerve 



Occipital artery-^i 



Third occipital 

 nerve 



Trapezius 



Occipital belly of 

 epicranius 



Semispinalis capitis 

 (O.T. complexus) 



Posterior 

 auricular muscle 



Splenius capitis 



Posterior 

 auricular nerve 



Parotid gland 

 Small occipital nerve 

 Sterno-mastoid 

 ~ Great auricular nerve 



Levator scapulae 



FIG. 70. Superficial dissection of the Back of the Neck. 



The upper fibres of the muscle descend in oblique curves 

 and are inserted into the lateral third of the posterior border 

 and the adjacent part of the superior surface of the clavicle ; 

 the intermediate fibres run horizontally, towards the shoulder, 

 and are inserted into the medial border of the acrornion and 

 the upper lip of the posterior border of the spine of the 

 scapula. The lower fibres ascend, and terminate in a small 

 nll a 



