Neuroglia in Central N.S.

Question 1

Astroctyes:

Answer 1

The cell processes form a supportive network that connects neurons to blood vessels

helps form blood-brain- barrier to prevent harmful substances from blood to brain tissue

regulates oxygen, CO2, nutrients levels

Question 2

Microglia:

Answer 2

Act as phagocytes, protect the CNS from disease causing micro-organisms & clear cellular debris

Question 3

Ependymal:

Answer 3

Modified epithelial cells that line the ventricles of the brain & central canal of S.C.

Facilitate the circulation of C.S.F. in ventricles

Question 4

Obligodendrocytes:`

Answer 4

Produce melanin sheath around axons in the C.N.S.