11 Aorta Histology Drawing 2022. Seen as clefts, tubules, cysts, papillae. • intricate network of hollow tubes that transport blood throughout the entire body • two systems:
Arterioles are small arteries that deliver blood to capillaries. Arterioles control blood flow through capillary beds by contracting or dilating the the size of the lumen, and therefore the tunica. This is a longitudinal section through the normal aorta with an elastic tissue stain at low power.