The changes that occur in the brain that give rise to hydrocephalus involve the thinning of the cerebral cortex. The cerebral cortex is the outer, folded point of the brain which contains much than 15 million neurons, which in offer make connections with thousands of other neurons. Cerebral spinal fluid (CSF), is ready within the ventricles (small spaces) of the brain. CSF is mostly produced by the cells of the choroid plexus which is a spongy layer of cells and blood vessels within the ventricles. CSF is produced at the yard of around half a litre each day and it fills the ventricles and flows around the brain and the spinal cord in rig to protect them. Any free CSF is removed from the brain done the dural venous sinuses, which is a series of veins situated amongst layers of dural mater in the brain. These vein channels black market down to the arachnoid villi, which is a layer of tissue which acts as a one way valve. The arachnoid villi allow surplus CSF to leave the brain save dont allow blood to leakage into the brain in the process.
In patients with Hydrocephalus, the cerebral cortex is lots thinner than normal.
This is sweatd when an excess of CSF causes the ventricles to become ab unremarkably large which in turn puts a large amount of pressure on the cerebral cortex and causes it to become compressed. The abnormal accumulation of CSF tooshie occur if the choroid plexus over produces CSF or if any of the ventricles or arachnoid villi in the brain become block off interfering with the re absorption of CSF.
Hydrocephalus causes the appearance of the take aim to look enlarged and is sometimes known as body of water on the brain. The amount of excess CSF varies from patient to patient and it seems that the more excess fluid that there is in the brain consequently the greater the degree of disability for the patient. A person with a small to middling excess of CSF can live normally with normal and above average IQ s but a large excess of fluid can cause severe mental...If you want to get a full essay, set up it on our website: Orderessay
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