Which of the following is involved in the blood brain barrier?
a Ependymal cells
b Astrocytes
c Oligodendrocytes
d Microglia
e Schwann cells
Answers
Explanation:
The blood–brain barrier is formed by endothelial cells of the capillary wall, astrocyte end-feet ensheathing the capillary, and pericytes embedded in the capillary basement membrane.
Answer:
The Astrocytes are involved in the Blood-Brain Barrier.
Explanation:
The Blood-Brain Barrier (BBB) is the microvasculature system composed of blood vessels and cells which are spaced close to each other. BBB prevents harmful substances from reaching the brain. The tight regulation of the BBB protects the Central Nervous System (CNS) from toxins, pathogens, inflammation and certain diseases. It permits the regulation of only some ions, molecules and cells from the blood to the CNS.
The two types of cells that form the blood vessels of the BBB: 1. Endothelial Cells make up the blood vessels 2. the mural cells sit on the albumen surface of the Endothelial Cells.
Astrocytes are star-shaped glial cells which are found in the brain and the spinal cord. They are the most abundant cells found in the brain. They play an important role in the normal functioning of the nervous system.
Astrocytes play a role in synaptic transmission, Neuroplasticity, it also supports metabolic activities ensuring their optimal functioning, protects the neurons against toxic substances.