neuronal structure

Question 1

myelin

Answer 1

a white, lipid-rich wrapping layer that surround a section of an axon
1-2mm long segments:depolarization takes place in the gaps(Nodes of Ranvier)
current jumps between nodes(saltatory)

Question 2

Schwann cells

Answer 2

• peripheral nervous cells
• whole cell wraps around axon
• applied to a single neurobn

Question 3

Oligodendrocyte

Answer 3

• central nervous system
• processes from cell wrap around the axon
• applied to multiple neurones

Question 4

Astrocytes

Answer 4

maintain microstructure
regulate blood-brain barrier
biochemical homeostasis
chemical communication

Question 5

microglia

Answer 5

immune cells

produce growth factors

Question 6

ependymal cells

Answer 6

produce CSF
Line CSF spaces
Cilia aid CSF movement