So you have all of these endothelial cells.

That purple line represents the endothelial cells AND the basement membrane.

The signalling protein ERK5 is essential for maintaining normal endothelial cell function.

Endothelial cells may be infected within 3 days after exposure to the virus.

So let's say that this down here these are the endothelial cells of our capillaries.

And together the basement membrane and endothelial cells, they make up a layer called the Tunica Intima.

But anyway, so the histamine one of the things that the histamine does is it goes to the endothelial cells that

You have these histamines that are being dumped on these endothelial cells and maybe some of it 's getting into the serum.

So these are capillary endothelial cells, and of course, right in here, we have our blood flowing and we'll have red blood cells in here.

Once infected, endothelial cells (cells lining the inside of blood vessels), liver cells, and several types of immune cells such as macrophages, monocytes, and dendritic cells are the main targets of infection.

Types There are three main types of blood capillaries Continuous Continuous capillaries are continuous in the sense that the endothelial cells provide an uninterrupted lining, and they only allow smaller molecules, such as water and ions to pass through their intercellular clefts.