ANATOMY LT3 - BLOOD VESSELS Flashcards
SMALL VEINS
Tunica Intima: RELATIVELY LARGE LUMEN
TUNICA ADVENTITIA
layer of LARGE ELASTIC ARTERY that contains VASA VASORUM
TUNICA MEDIA
Layer of Large Elastic Artery: multiple layers of smooth muscle cells separated by ELASTIC LAMELLAE
Tunica Media
Layer of Large Elastic artery that contains:
- elastin (fenestrated sheets between smooth ms
- smooth muscles
- collagen fibers
- ground substance
Tunica Adventitia
Layer of Large Elastic Artery:
- : Underdeveloped, relatively CT Layer: consists of collagen
- loose network of elastic fibers
- fibroblasts and macrophages
- blood vessels (VASA VASORUM), and nerves (NERVI VASCULARIS)
TUNICA ADVENTITIA
Large Elastic Artery layer that contains fibroblasts and macrophages
Tunica Media
Layer of Medium/Muscular Artery: contains smooth muscle cells, collagen fibers and LITTLE ELASTIC MATERIAL
TUNICA ADVENTITIA
Layer of Muscular/Medium Artery that is relatively thick, often has an external elastic membrane that consists of: fibroblasts, collagen fibers, elastic fibers, and sometimes SCATTERED ADIPOSE CELLS
Tunica Intima
Layer of Arterioles does not have elastic laminae, very thin subendothelial layer
Tunica Media of Arterioles
Composed of circularly arranged smooth muscles
Tunica Media
Arteriole’s layer that is thick, containing 2 or 3 layers of smooth muscle
TUNICA MEDIA and TUNICA ADVENTITIA
Two layers in Medium veins: better developed but its wall is often folded around the relatively large lumen
Tunica Media
Large Vein’s layer that has few layers of smooth muscles but abundant in Connective Tissues
Tunica Adventitia
Large vein’s layer that is thick and frequently contains longitudinal bundles of smooth muscles
Large elastic Artery and Medium/Muscular Artery
Internal Elastic membrane is present in these two types of vessels
