Question

A tumor of the cells that line the ventricles of the brain is called a(n)

1) Meningioma
2) Glioblastoma
3) Ependymoma
4) Astrocytoma

Answer 1

An Ependymoma is a tumor of the cells that line the ventricles of the brain. These cells, called ependymal cells, filter blood to produce cerebrospinal fluid (CSF) which circulates through the central nervous system (CNS). They have cilia on their apical surface to help move the CSF.

Step-by-step explanation:

A tumor of the cells that line the ventricles of the brain is called an Ependymoma. Ependymomas arise from ependymal cells, which are glial cells that filter blood to make cerebrospinal fluid (CSF). These cells line the ventricles, which are cavities within the brain where the CSF is produced by the choroid plexus. The choroid plexus contains ependymal cells that line the blood capillaries and filter blood to produce CSF, a clear fluid critical for protecting the brain and spinal cord.