The correct answer is <span>It
can leave dirt and allergens inside your nose, which your immune system
must remove by creating specific antibodies which can attack you
The nose hair found in your nose is used to prevent bad things from going in, and if you pick your nose, you're directly putting stuff inside and ignoring your natural protection against bad things such as viruses or bacteria.</span>
Answer:
There are <em><u>four types of neuroglia</u></em> found within the central nervous system:
<u>Astrocytes</u> :
It maintains the blood brain barrier and preserve the chemical environment by recycling ions and neurotransmitters.
<u>Oligodendrocytes</u> :
The myelinate axons in the central nervous system and provide an overall structural framework.
<u>Ependymal cells</u> :
The line ventricles (brain) and central canal (spine) and are involved in the production of cerebrospinal fluid.
<u>Microglia</u> :
It removes cell debris, wastes and pathogens via phagocytosis.
Benign tumors are not cancerous. Malignant tumors are cancerous.
Benign tumors usually aren't problematic while malignant tumors grow and spread quickly putting you in harms way.
