PSY 602 Chapter Notes - Chapter 3: Diencephalon, Inferior Colliculus, Hypothalamus
Document Summary
Stroke: interruption of blood to the brain that kills brain cells and causes a sudden appearance of neurological symptoms. Ischemia: a deficiency of blood flow to the brain due to functional constriction or to the actual obstruction of a blood vessel, such as by a clot. Tissue plasminogen activator (t-pa): breaks up clots caused by ischemia and allows normal blood flow to the affected area. (must be taken within 3 hours of a stroke. Hemorrhagic stroke: stroke caused by a hemorrhage to the brain. Nuclei: groups of cells forming clusters that can be visualized by special stains to identify a functional grouping. Some brain nuclei are folded, others have distinctive shapes and colours. Description in direction of a cut through brain: Horizontal section: viewed looking down on brain from above. Sagittal: cut lengthways from front to back and viewed from the side. Ipsilateral: structures that lie on the same side.
