PSY290H5 Lecture Notes - Lecture 2: Brain Ischemia, Cerebrospinal Fluid, Autonomic Nervous System
Document Summary
Talk about any part of our nervous system that is enclosed by bone. --spinal nerves (leave spinal cord to go to other parts of the ns) Autonomic nervous system basic psychological response system. Tough, fibrous and tense dura mater (1mm thick) (extremely tough and thick) Provides nutrients to certain areas of the brain. Thought to be getting rid of waste during sleep. Brain isn"t devoid of getting nutrients in other forms. Takes up 20% of our oxygen demand, even though its only 2% of our body. Blood supply to bran is reduced over time and it slowly accumulates and the function will continue to decrease. Occurs in the heart, causes a heart attack. Anytime do surgery on the brain, good chance will affect another part of the brain. Side effects can led to patients with even wore symptoms. -disconnect in rational and irrational thinking when it occurs. 50% of visual information crosses over to contralateral side.
