What are the Differences Between Fenestrated and Continuous Capillaries?
The primary difference between fenestrated and continuous capillaries lies in their permeability. Continuous capillaries have tightly packed endothelial cells with no pores, making them less permeable. They are more common in tissues where a selective barrier is necessary, such as the brain and muscles. In contrast, fenestrated capillaries, with their small pores, are more permeable and are found in tissues that require rapid exchange of substances.