File:Blood vessel wall cartoon.jpg

From Embryology
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Blood Vessel Wall

tunica intima

  • delimits the vessel wall towards the lumen
  • endothelial (simple squamous epithelium) lining and associated connective tissue.
  • beneath the connective tissue, internal elastic lamina
    • forms the limit of the tunica intima

tunica media

  • formed by a layer of circumferential smooth muscle and variable amounts of connective tissue.
  • located beneath the smooth muscle a second layer of elastic fibers, external elastic lamina
    • forms the limit of the tunica media

tunica adventitia

  • consist mainly of connective tissue fibres.
  • blends with the connective tissue surrounding the vessel.
    • definition of the outer limit of the tunica adventitia is arbitrary.


Links: Medicine Prac | Science Prac | Blood Vessel Development | Cardiovascular System Development



Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.


Cite this page: Hill, M.A. (2019, August 18) Embryology Blood vessel wall cartoon.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Blood_vessel_wall_cartoon.jpg

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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