The term soil pipe is often used to designate cast-iron pipe of any size and for any purpose in connection with the plumbing system. The latter is the sense in which it will be referred to in the consideration of the present subject. Plate XIII.
Posterior communicating artery. In human anatomy, the left and right posterior communicating arteries are arteries at the base of the brain that form part of the circle of Willis. Each posterior communicating artery connects the three cerebral arteries of the same side. Anteriorly, it connects to the internal carotid artery (ICA) prior to the terminal bifurcation of the ICA into the anterior cerebral artery and middle cerebral artery.
Anterior cerebral artery. The anterior cerebral artery supplies most of the superior-medial parietal lobes and portions of the frontal lobes with fresh blood. Blood supply to the brain is essential to its functionality, and a lack of blood flow to the vital processes of the brain can cause serious harm.If blood flow is blocked in the anterior cerebral arteries, paralysis or sensory deficits may occur, or even a stroke.Anterior cerebral arteries supply blood to the frontal lobes' anterior (front) aspects, areas responsible for higher-level cognition, including judgment and reasoning.Blockages of these arteries can result in cerebral dementia and speech difficulties.nterior cerebral arteries supply blood to the frontal lobes' anterior (front) aspects, areas responsible for higher-level cognition, including judgment and reasoning.