The microglial cells are similar to the tissue macrophages (Chen et al., 2002). These cells are normally resting, but are sensitive to alterations in the homeostasis of the retina; when the retina is altered, the microglial cells rapidly change into phagocytes. Finally, in the retina we also find endothelial cells and pericytes, which flank the nerve cells and glia cells or arrange themselves around the blood vessel walls. Pericytes are modified smooth muscle cells that regulate the vascular flow through dilation and contraction of the vessels. The endothelial cells regulate the homeostatic function and form the haemato-retinal barrier.

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Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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