Supporting cells of the nervous system Flashcards
Ciliated cells lining the ventricles of the brain and central canal of the spinal cord.
Ependymal cells.
What is the role of ependymal cells with regards to CSF?
Formation and circulation of CSF.
These cells play a role in directing cell migration during brain development, forming and circulating CSF.
Ependymal cells.
Phagocytes that engulf debris and are involved in remodelling of synaptic connections.
Microglia.
These cells may migrate into the brain from blood. Also contribute to relationship between immune system and CNS function.
Microglia.
Name two types of macroglia found in the CNS.
- Astrocytes.
- Oligodendrocytes.
Name two types of macroglia found in the PNS.
- Schwann cells.
- Capsular cells.
The most numerous cells in the nervous system and highly heterogeneous in morphology.
Astrocytes.
The perivascular end-feet of astrocytes are found where and contribute to what?
Surrounding the capillaries that form the blood brain barrier.
Subpial end-feet on the surface of the brain and spinal cord are processes of which cell of the nervous system?
Astrocytes.
Astrocytes undergo alterations in response to CNS insults making them highly susceptible to what?
Neoplasm formation.
Astrocytes control electrolyte balance in the CNS, particularly of which ion?
Extracellular K+.
This cell produces the neurotrophins necessary for neuronal survival.
Astrocytes.
Responsible for the uptake of several important neurotransmitters e.g. glutamate, GABA.
Astrocytes.
Cells supplying Glutamine for the synthesis of the neurotransmitter Glutamate by neurones.
Astrocytes.