Vascular tissue
Basic theory
➡️All blood vessels has following layers
☢️Tunica initima
consists of endothelium, sub endothelial- connective tissue and internal elastic lamina
☢️Tunica media
it is composed of connective tissue fibres and smooth muscles. It is separated from tunica adventitia by 'external elastic lamina'
☢️Tunica Adventitia
composed of connective tissue. Posses" Vasa vasorum" and "nervi vasorum"
⛔Large/elastic artery(eg:aorta)
➡️ presence of many elastic fibres in "tunica media". Smooth muscle content is less
➡️ internal elastic lamina is not prominent
⛔Medium sized /muscular artery (eg:palmar.A)
➡️Tunica media contains abundance of smooth muscles and few elastic fibres
➡️prominent internal elastic lamina
⛔Large vein(eg:svc)
➡️ Thick tunica adventitia with longitudinal bundles of smooth muscles
➡️ poorly developed tunica media
⛔Medium sized vein
➡️ characterized by collapsed lumen
➡️ tunica media with few smooth muscle fibres and Elastic fibers
H&E SLIDE LOW MAGNIFICATION
Large/elastic artery(eg:aorta
How to draw
