Health Sciences 3300A/B Chapter Notes - Chapter 18A: Anterior Cerebral Artery, Dural Venous Sinuses, Internal Carotid Artery

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 3300A/B
• Professor: Oleksiy Zaika

Document Summary

Anastamoses connection in which blood flow comes together or competes with each other. Aneurysms hemorraghic stroke - enlargements of blood vessels due to the weakening of their walls. Anterior communicating artery where anastomoses of the left and right anterior cerebral arteries connect. Anterior cerebral artery one of a pair of arteries on the brain that supplies oxygenated blood to the brain and arises from the internal carotid artery and are part of the circle of willis. Arachnoid granulation projections of the arachnoid membrane (villi) into the dural sinuses that allow csf entrance from the subarachnoid space into the venous system . Arachnoid mater the middle of the three meninges of the brain - it is located under the dura mater and they are connected to one another. Arachnoid villus drains csf into the sinuses - if not drained it will lead to meningitis or encephalitis.