Composition of elastic artery

Tunica intima- no inner elastic lamina and can't tell difference between tunic intima tunica media- presence of concentric fenestrated sheets of elastin, only a few smooth muscle fibres (these secrete elastin) tunica adventitia- no OEL, thin layer of tunica adventitia function- stretch during systole, during diastole there is decreased pressure, arteries recoil causing constant pressure on the blood