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5 Cards in this Set

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  • Back

What are the three types of Capillary?

Continuous


Fenestrated


Sinusoidal

What are the features of a Continuous capillary?

Endothelial cells provide uninterrupted lining.


Only allow smaller molecules such as water and ions to diffuse through tight junctions


What are the two types of tight junctions?

1. Those with numerous transport vesicles - primarily found in skeletal muscles, finger, skin.


2. Those with few vesicles are primarily found in CNS. These are involved in blood brain barrier.

What are the features of Fenestrated capillaries?

Pores in endothelial cells.


Allow small molecules and limited amounts of protein to diffuse.


Located in glands, intestines, pancreas and kidney glomeruli.

What are the features of a Sinusoidal capillary?

Contains large openings


Allow RBC and WBC and serum proteins to pass.


Mainly located in bone marrow, lymph nodes and adrenal gland.