Cerebral cortex Cerebrospinal fluid

Gehirn-hsutentzundung, /. meningitis, -kapsel, /. cranium. -rinde, /. cerebral cortex, -wasser, n. cerebrospinal fluid, gehoben, p.p. (of heben) lifted, raised, etc. gehoifen, p.p. (of heifen) helped, assisted. Gehblz, n. wood, woodland, copse. 

Figure 6.2 Frontal section of the brain. The cerebrum is composed of two types of tissue internal white matter and external gray matter which forms the cerebral cortex. Embedded within the cerebral hemispheres are other masses of gray matter, basal ganglia, and thalamus. The ventricles are filled with cerebrospinal fluid (CSF).

On the left (A) is a profile of the human brain, and on the right, a magnified view (B) of a slice through the brain as indicated by the dotted line. The anatomy of the brain consists of two hemispheres, each covered with multiple layers of important cells known as the cerebral cortex. White matter, which consists of wiring —projections from one cell to another—lies beneath the cerebral cortex, along with some groups of cells that perform various functions. The ventricles are cavities through which runs a substance called cerebrospinal fluid, which helps protect and cushion the delicate structures of the nervous system. 

Argentiero V, Tavolato B Dopamine (DA) and serotonin metabolite levels in the cerebrospinal fluid (CSF) in Alzheimer s presenile dementia under basic conditions and after stimulation with cerebral cortex phospholipids. J Neurol 224 53-58, 1980... 

Shi, Z., Zhang, Q., and Jiang, X. (2005), Pharmacokinetic behavior in plasma, cerebrospinal fluid and cerebral cortex after intranasal administration of hydrochloride mep-tazinol, Life Sci., 11, 2574-2583. 

The visual cortex occupies the occipital and parts of the parietal and temporal lobes of the cerebral cortex. Like the entire cortex, it forms a highly folded structure, with a thickness of approximately 1.5 mm. It is surrounded by the cerebrospinal fluid, several layers of meninges- pia mater, arachnoid, dura, and the skull. 

The CTZ, located in the area postrema of the fourth ventricle of the brain, is a major chemosensory organ for emesis and is usually associated with chemically induced vomiting. Because of its location, blood-borne and cerebrospinal fluid toxins have easy access to the CTZ. Therefore cytotoxic agents stimnlate primarily this area rather than the cerebral cortex and visceral afferents. Similarly, pregnancy-associated vomiting probably occurs through stimulation of the CTZ. 

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