Features of Neuroglia cells include all except –
**Core Concept**
Neuroglia cells, also known as glial cells, are non-neuronal cells that provide support, maintenance, and protection to neurons in the central and peripheral nervous system. They play a crucial role in maintaining the environment around neurons, including supplying oxygen and nutrients, removing waste products, and regulating the ion composition of the extracellular fluid.
**Why the Correct Answer is Right**
Neuroglia cells have distinct features, including the ability to produce myelin, the support of neurons through the provision of trophic factors, and the removal of dead neurons and other debris through phagocytosis. Astrocytes, a type of neuroglia cell, are involved in the regulation of ion and water balance in the extracellular fluid, which is essential for maintaining proper neuronal function.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because neuroglia cells are not responsible for the transmission of nerve impulses. This is a function of neurons.
**Option B:** This option is incorrect because neuroglia cells do not produce neurotransmitters. Neurotransmitters are produced by neurons and play a crucial role in neurotransmission.
**Option C:** This option is incorrect because neuroglia cells are not directly involved in the conduction of electrical signals. This is a function of neurons.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that neuroglia cells play a crucial role in maintaining the health and function of neurons. Damage to neuroglia cells, such as in multiple sclerosis, can lead to significant neuronal dysfunction and disease.
**Correct Answer: C. Neuroglia cells are not directly involved in the conduction of electrical signals.**