What are the different types of cappilaeries?

Answer 1

There are three main types of capillaries: continuous, fenestrated, and sinusoidal. Continuous capillaries have a complete endothelial lining and are the most common type, found in muscles and the blood-brain barrier. Fenestrated capillaries contain small pores that allow for increased permeability, primarily located in areas like the kidneys and intestines. Sinusoidal capillaries have larger gaps between endothelial cells, facilitating the exchange of larger molecules and cells, and are found in the liver, spleen, and bone marrow.