Glia

Question 1

What are neuroglia [2]

Answer 1

• non excitatory cell
• play supportive role in the nervous system

Question 2

Briefly describe the distribution of glia vs. other neurones in the CNS [2]

Answer 2

• higher proportion of glia in cerebral cortex compared to neurones
• higher proportion of neurones in cerebellum compared to glia

Question 3

Draw flow digram showing the different neurones in the nervous system as well as there functions

Answer 3

see diagram 1.

Question 4

Identify some functions of astrocytes[5]

Answer 4

• nutrient transfer
• NT uptake
• maintain extracellular ion balance and pH
• regulates neuroinflammation
• synaptogenesis
• synaptic remodelling
• modulates synaptic transmission/ plasticity