Answer:
Hydrocephalus is produced when there is an imbalance between the cerebrospinal fluid (CSF) produced by the choroid plexus and its absorption into the bloodstream. It is a congenital disease that can be divided into two major classes: communicating and non-communicating hydrocephalus. Communicating hydrocephalus is caused by blockage of the CSF circulation pathway after exit from the ventricles, while the non-communicating type is caused by the obstruction of one or more ventricles in the brain. Thus, the disruption of the ventricular zone (i.e., both the obstruction within a ventricle and the connection between ventricles) is known to cause non-communicating hydrocephalus, while the factors associated with communicating hydrocephalus include insufficient CSF reabsorption, excessive CSF production and defective flow of CSF.
