Tissues that have elastin fibers are tissues like the arteries, skin, and lungs, and tissues that have microfibrils but no overlying layer of elastin are like tendons and the ciliary zonules that hold the eye lens in place.

纤维存在于动脉、皮肤、肺等组织，无蛋但含有微纤丝的组织包括肌腱以及维持正常位置的睫带等。