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Cardiovascular system
Elastic Artery (aorta) (H&E stain)
Tunica intima (aorta)
media
Endothelium
Tunica media
Elastic artery
Vasa vasorum
media
adventitia
Masson’s trichrome stain (aorta)
media
Black=elastic lamina, Red=smooth muscleGreen=collagen
Tunica adventitia
Vasa vasorum
Elastic artery
Elastic artery (van Gieson stain) TUNICA MEDIA
Elastic lamina=black Connective tissue=pink
Tunica Media
Vein
Artery
Medium sized (Vein and Artery)
veinartery
Medium sized
Muscular artery (medium sized )
Muscular artery
Media
Intima
Adventitia
Muscular artery
media
adventitia
Internal elastic lamina
media
adventitia
IEL
LAMINA
MEDIA
External elastic laminae
IEL
Muscular artery
VEIN
Medium sized
MEDIA
ADVENTITIA
Medium sized vein
ARTERIOL
VENULE
Large sized (arteriole & venule)
Large Arteriole
Superficial Vein (Saphenous) (Masson’s trichrome stain)
media
Superficial Vein (Saphenous)
adventitia
Superficial Vein (Saphenous)
Microvasculature Vessels
HEART
Intercalated disk (special stain)
Intercalated disk
Intercalated disc
Purkinje Fibers
(PAS stain)
Ordinary cardiac muscle
Purkinje Fibers
Endocardium
Purkinje Fibers(PAS stain)
Purkinje Fibers(PAS stain)
