76 
rootlets extending as far as the commencement of the first cervical 
nerve. They united to form a small ascending trunk on the lateral 
aspect of the medulla. In the jugular foramen this trunk finally joined 
the vagus to form a large nerve which thenceforward could not be 
divided into its component parts. , 
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Big, 1, 

Fig. 1. Lateral view of neck of Camel to show the sterno-cephalicus: 
At the upper part of the neck the muscle divides into sterno-masseteric and 
sterno-occipital portions, the greater part of the latter being inserted into the 
styloid process. 
The nerve supply of this muscle comes entirely from the 3rd cervical nerve 
as shown in the figure. The spinal accessory takes no part in the supply of either 
sterno- or brachio-cephalicus in the camel. 
Fig. 2. Ventral aspect of the brain and the highest part of the spinal cord 
in the Camel. Only the medullary portion of the spinal accessory nerve is present. 
It joins the vagus nerve in the jugular foramen and thenceforward is indisting- 
uishable from the latter nerve. 
