Neuroglial Cells Flashcards
1
Q
Neuroglia function
A
-support, insulate, and protect neurons
2
Q
Types of neuroglia in the CNS
A
- astrocytes
- microglial cells
- epyndymal cells
- oligodendrocytes
3
Q
Types of neurology in the PNS
A
- Schwann cells
- satellite cells
4
Q
Astrocytes
A
- abundant and star shaped
- support, brace and anchor neurons to blood capillaries
- control chemical environments around neurons
- guide neurons and synapse development
- determines permeability and exchange between capillaries and neurons that for the BBB
5
Q
Microglial cells
A
-monitors health of neurons
-transforms into macrophages in presence of debris and invaders
(BBB restricts immune system access to the CNS)
6
Q
Ependymal cells
A
- lines cavities of the brain and spinal cord
- cilia assists with the circulation of the CSF
7
Q
Oligodendrocytes
A
- wraps around nerve fibres in the CNS
- produces myelin sheath (white fatty material covering axons)
- protects and insulates fibres
- speeds nerve impulse transmissions
8
Q
Schwann cells
A
-forms the myelin sheaths by wrapping around the neuron
gaps between Schwann cells are the nodes of Ranvier
9
Q
Satellite cells
A
-protects and cushions neuron body
