What is the lining epithelium of ventricles of brain?
**Core Concept**
The lining epithelium of the ventricles in the brain is a specialized layer of cells that plays a crucial role in the production and circulation of cerebrospinal fluid. This epithelial layer is known as the **ependyma**. The ependymal cells line the ventricular system of the brain and the central canal of the spinal cord.
**Why the Correct Answer is Right**
The correct answer is related to the **ependymal cells**, which are a type of **glial cell**. These cells are responsible for the production and secretion of cerebrospinal fluid, and they also help to circulate this fluid throughout the ventricular system. The ependymal cells have **microvilli** and **cilia** that aid in the circulation of cerebrospinal fluid.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not relate to the lining epithelium of the ventricles.
**Option B:** This option is also incorrect as it is not associated with the ependymal lining.
**Option D:** This option is incorrect because it refers to a different type of cell or tissue.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that the **ependymal cells** play a critical role in maintaining the health of the central nervous system by producing and circulating cerebrospinal fluid. Damage to these cells can lead to various neurological disorders.
**Correct Answer:** D. Ependyma.