blood vessels contain ENDOthelial cells not epithelial cells

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I just want to make you aware of this as it is a very common error that my students make. Blood vessels are made up of ENDOTHELIAL cells, which are a specialised form of epithelial cells. For example in the lungs, epithelial cells make up the wall of alveloi but endothelial cells make up the capillary wall.

Posted Thu 20th December, 2012 @ 18:56 by Rachel

3 Answers

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But isn't the tunica intima lined with sqamous epithelium to reduce blood friction? :s

Answered Fri 21st December, 2012 @ 17:52 by Hummi C
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the squamous epithelium is formed from specialised epithelial cells called endothelial cells. they are distinguished from other types as they contain a protein called vimentin. 

Answered Fri 21st December, 2012 @ 20:10 by Rachel
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So what's the difference between endothelial and epithelial?

Answered Fri 21st December, 2012 @ 21:59 by Joanne