PSYB65H3 Chapter Notes - Chapter 14: Traumatic Brain Injury, Closed Head Injury, Subarachnoid Hemorrhage
Document Summary
Tumor ( neoplasms/new tissue ): a mass of new and abnormal tissue that is not physiologically beneficial to its surrounding structures. Space-occupying lesions: they are foreign objects that cause damage to the cns by putting pressureon it and occupying space that is normally occupied by the cns. Benign tumors not likely to recur, malignant ones are more likely to recur. Metastatic tumors : secondary tumors that form from migrated tumor tissue(common for the original tumor to be located outside of the cns) Neuropsychological effects of tumors: the behavioural symptoms that arise from the formation of a tumor vary widely. Cerebrovascular disorders (stroke): occurs when the blood supply to the brain is interrupted, which can be sudden or gradual, complete or relative, permanent or temporary. Cerebrovascular accident (cva): refers to a class of cerebrovascular disorders, all of which result in interruptions to the brain"s blood supply. Cerebral ischemia: a lack of blood supply to the brain.