*Cerebrovascular Accident: Disorder in cerebral blood circulation; frequently it has a sudden onset, It can be ischemic (reduction of blood flow) or hemorrhagic (bleeding), it alters the tissue irrigated by the vessel that has ischemia and the surrounding tissue in hemorrhagic accidents.

*Superior Cortical Functions: They are exclusive abilities of the human being and include activities such as:
• Language
• Memory
• Sensory-sensitive functions
• Behavior

*Morphology: Branch of biology responsible for studying the structure of living beings.