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CNS Vasculature - Anatomy & Physiology (view source)
Revision as of 13:13, 6 March 2011
, 13:13, 6 March 2011→Sheep and Cat
===Sheep and Cat===
===Sheep and Cat===
Again the main supply to the brain in both species is via three main sources; paired internal carotid arteries and the basilar artery. On the right side of an ovine and feline brain there is a similar physiological setup to that found in canines and man (above). The right internal carotid artery receives blood supply from the normal source (describes in the section above) but also has a maxillary ramus and a vertebral artery ramus, both of which have rete mirabile functions.
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Only channel 3 supplies the arterial circle and unlike in the dog, this channel has a rete mirable. Channel 2 carries blood away from the arterial circle. Maxillary blood is distributed to all of the brain except the caudal part of medulla oblongata, which is supplied by vertibral blood.
Only channel 3 supplies the arterial circle and unlike in the dog, this channel has a rete mirable. Channel 2 carries blood away from the arterial circle. Maxillary blood is distributed to all of the brain except the caudal part of medulla oblongata, which is supplied by vertibral blood.
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===Ox===
===Ox===
Channels 3 and 4 both supply the arterial circle and each has a rete mirable. Channel 2 carries blood away from the arterial circle. A mixture of maxillary and vertebral blood reaches all parts of the brain.
Channels 3 and 4 both supply the arterial circle and each has a rete mirable. Channel 2 carries blood away from the arterial circle. A mixture of maxillary and vertebral blood reaches all parts of the brain.
[[Category:Nervous_System_-_Anatomy_&_Physiology]] [[Category:To_Do_-_A&P]]
[[Category:Nervous_System_-_Anatomy_&_Physiology]] [[Category:To_Do_-_A&P]]