How many types of capillaries are there?

Answer 1

There are three main types of capillaries: continuous, fenestrated, and sinusoidal. Continuous capillaries have uninterrupted endothelial cells and are found in tissues such as muscle and the brain. Fenestrated capillaries have small pores that allow for increased permeability and are commonly found in the kidneys and intestines. Sinusoidal capillaries are larger and more irregularly shaped, allowing for the passage of larger molecules and are typically found in the liver, spleen, and bone marrow.