In between the parietal and visceral pericardial layers there is a potential space called the pericardial cavity, which contains a supply of lubricating serous fluid known as the pericardial fluid. When the visceral layer comes into contact with heart (not the great vessels) it is known as the epicardium.oth of these layers function in lubricating the heart to prevent friction during heart activity. The visceral layer extends to the beginning of the great vessels (the large blood vessels serving the heart) becoming one with the parietal layer of the serous pericardium.
There are two broad categories of aphasia: fluent and nonfluent, and there are several types within these groups. Damage to the temporal lobe of the brain may result in Wernicke's aphasia (see figure), the most common type of fluent aphasia. People with Wernicke's aphasia may speak in long, complete sentences that have no meaning, adding unnecessary words and even creating made-up words. For example, someone with Wernicke's aphasia may say, You know that smoodle pinkered and that I want to get him round and take care of him like you want before.
[ËvÉÊnÉªkÉ]), also called Wernicke's speech area, is one of the two parts of the cerebral cortex linked, since the late nineteenth century, to speech (the other is Broca's area).