We see the greatest variety of clinical effects following occlusion than with any other artery. Saccadic movements are spared. Visual agnosia may also be seen. Superior cerebellar peduncle 3. 1. corticospinal tract 2.
Complete occlusion is generally results in death.
The blood supply of the spinal cord 1. From the cisterna magna the CSF passes into all parts of the subarachnoid space moving around the cerebral cortex and cerebellum towards the dural venous sinuses. Found in the subarachnoid space 4. CSF is absorbed into the venous system by arachnoid villi. These are microscopic protrusions of thin arachnoid membrane through openings of the dura.