What is fenestrated capillary?

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In summary, a fenestrated capillary is a type of blood vessel with small openings in its walls that allow for increased transport of substances between the blood and surrounding tissues. It differs from other capillaries in terms of the size and number of fenestrations. Fenestrated capillaries are found in organs and tissues where there is a high need for transport, such as in the intestines, endocrine glands, and kidneys. They aid in nutrient absorption by allowing for the transport of essential substances from the blood to tissues. Additionally, fenestrated capillaries play a role in the body's immune response by facilitating the passage of immune cells to surrounding tissues.
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sameeralord
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Hello everyone,

In fenestrated capillary there are holes inside the endothelial cell, I don't understand how cells can have holes? Does this mean that individual holes in endothelial cells are covered by a lipid membrane? Can anyone tell how can there be holes in an individual cells when lipid membrane usually covers the whole cell. Thanks :smile:

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Now I realized each capillary is covered by a basal lamina, now how do the molecules pass through this after they pass through the pores?
 

What is a fenestrated capillary?

A fenestrated capillary is a type of blood vessel found in the body, specifically in the smallest blood vessels called capillaries. It is characterized by small openings or pores, called fenestrations, in its walls that allow for increased transport of certain substances between the blood and surrounding tissues.

How is a fenestrated capillary different from other capillaries?

A fenestrated capillary differs from other capillaries, such as continuous and discontinuous capillaries, in that it has more numerous and larger fenestrations in its walls. This allows for a higher rate of exchange of substances between the blood and tissues.

Where are fenestrated capillaries found in the body?

Fenestrated capillaries are found in organs and tissues where there is a high need for transport of substances between the blood and tissue cells. This includes the intestinal villi, endocrine glands, and the glomeruli of the kidneys.

How do fenestrated capillaries help with nutrient absorption?

The fenestrations in the walls of fenestrated capillaries allow for increased transport of nutrients, such as glucose, amino acids, and fatty acids, from the blood to surrounding tissues. This helps to support the metabolic needs of these tissues.

What is the role of fenestrated capillaries in the body's immune response?

Fenestrated capillaries play a role in the body's immune response by allowing for the passage of immune cells, such as white blood cells, from the blood to surrounding tissues. This helps to facilitate the body's defense against pathogens and foreign substances.

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