PSY290H5 Chapter 15: Chapter 15 Textbook Notes - Neurological Disorders
Document Summary
The cerebrospinal fluid, and the blood-brain barrier provide to the brain provide significant protection. Damage can occur due to interruptions in the blood supply and from blows to the head. Growth of tumors and abnormal electrical activity of seizures can also interrupt normal brain functioning. Stroke a type of brain damage caused by an interruption of the blood supply to the brain. Ischemia a condition in which inadequate blood flow results in insufficient quantities of oxygen being delivered to tissue: often results from infarct an area of dead neural tissue. Infarct can cause changes in consciousness, sensation, or the ability to move depending on their size and location: transient ischemic attacks (tias) a brief (24-hour-or-less) episode of stroke symptoms that does not cause permanent damage. Thrombosis a blockage that doesn"t move from its point of origin in a blood vessel. Embolism a blood vessel blockage that originated elsewhere and traveled to its current location.
