VASCULAR SYSTEM. 



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two subclavian arteries, and on the right side the large coeliac 

 artery (r). The hyoidean artery (vh) is a continuation of the 

 ventral end of the efferent vessel of the first branchial arch on to 



the hyoid, up which it runs in a dorsal direction to supply the 

 pseudobranch (/&). The efferent vessel of the pseudobranch 



