*Release chemicals that promote the formation of tight junctions between the endothelial cells of capillaries. -These endothelial cells and tight junctions form the blood-brain barrier. *Reactive astrocytosis - Respond to tissue damage in the CNS. -In response to injuries of CNS tissue, astrocytes participate in walling off the injury site and limiting the spread of inflammation into healthy tissue.
Rainy weather tends to be more frequent during the springtime in San Sebastian, although sunny days are still in good supply. The weather and climate in San Sebastian remains mild, with a mixture of clear and overcast skies. Average temperatures between February and April range from 14Â°C / 57Â°F to 18Â°C / 64Â°F.Without doubt the best time of the year to visit the San Sebastian area, the summer weather and climate is at its most appealing from June to September.ffering a moderate climate year-round, the mild weather in San Sebastian is extremely inviting. Tourists choose to visit the San Sebastian throughout the year, although the high season tends to fall around the summer months, when visitors arrive to enjoy the sunniest, warmest weather.
San Sebastian (sebastiÃ¡n Aka) donostia is a city in The Basque, Country. Spain San sebastian SebastiÃ¡n Or san sebastian may also: 1  Refer To, saint sebastian An early christian saint.  and martyr