The texture doesn't seem organic. It must be something microscopic.
this is exactly what i thought too. it definitely looks like something beyond the scope of human vision.
it doesn't seem like the respiratory system to me. plus, i wonder how that would be made if it were. i think that theory could be disregarded, because it doesn't really have the texture or correct shape of a lot of parts, especially the pharynx. i think we should try to think of smaller objects it could be.
EDIT: actually, it kind of reminds me of dried lettuce leaves.