Week 1 Topic 3

Question 1

Glia subtypes

Answer 1

Astrocyte
Micoglia
Oligodendrocyte
Ependymal cells

Question 2

Astrocyte function

Answer 2

1. Distribute nutrients from the blood supply to Neurons
2. Maintanance of extra cellular ionic balance.
3. Tissue repair.
4. Regulation of synaptic activity by direct contact with synapses

Question 3

Micoglia Function

Answer 3

1. Resident immune cells of brain.
2. Clear der it.
3. Recruit other cells of sites of damage
4. Aid in tissue repair

Question 4

Oligodendrocytes function

Answer 4

1. Equivalent to Schwann cells in the periphery.
2. Support and insulate neuronal axon by generation of myelin sheath.
3. Increase speed of neuronal signalling through saltatory conduction