A 55-year-old patient is undergoing evaluation for increased…

A 55-year-old patient is undergoing evaluation for increased intracranial pressure. The neurologist explains that cerebrospinal fluid (CSF) must be properly drained into the bloodstream to maintain normal pressure within the brain. Which of the following structures allows cerebrospinal fluid to pass into the blood?  

A patient is being evaluated for a condition involving reduc…

A patient is being evaluated for a condition involving reduced circulation of cerebrospinal fluid (CSF), which can lead to hydrocephalus. A medical intern asks which cells are responsible for producing and helping circulate CSF within the brain’s ventricles. Which type of cells perform this important function?