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==Species Differences==
 
==Species Differences==
The [[#Vasculature|blood supply to the brain]] has major differences depending on species. Across all species, there are four 4 potential channels supplying the cerebral arterial circle. These are;  
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The [[#Vasculature|blood supply to the brain]] has major differences depending on species. Across all species, there are four 4 potential channels to facilitate blood supply to the Circle of Willis. These are;  
 
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*Internal carotid artery  
'''1. The internal carotid artery'''
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*Basiliar artery
 
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*The anastomosing ramus from the maxillary artery to the internal carotid artery  
'''2. The basiliar artery'''
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*The connection of the vertibral artery to the internal carotid artery  
 
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'''3. The anastomosing ramus from the maxillary artery to the internal carotid artery'''
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'''4. The connection of the vertibral artery to the internal carotid artery'''
      
==== Dog, man and many other species  ====
 
==== Dog, man and many other species  ====
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