Where are elastic fibers found?

Excuse me, could you please elaborate on the locations where elastic fibers are typically found? Are they present in all types of tissues within the human body, or are they more concentrated in specific areas? I'm curious to know if there's a particular reason why they're found in those locations, and what role they play in maintaining the structure and function of the tissues they inhabit. Additionally, are there any conditions or diseases that can affect the presence or function of elastic fibers? Thank you in advance for your insight.