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Not_Keurig t1_irde1kr wrote

Reply to comment by Beautiful-Ice7622 in What happens when a bruise heals? by DwagonFyre

That's a really interesting thought! But it's not the same reason. Lymph would obviously be more affected by tatoo ink, as macrophages engulf the metal in the tattoo ink, and then return to the lymph.

Really interesting to learn that about lymph. very much appreciate the additional info, but no, the high bilirubin making plasma look dark yellow, greenish or kinda black (called "icteric") is only from bilirubin.

Also it's not really black, just a very very dark greenish yellow.

Additionally, some medications can make the plasma look kind of green.

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dnick t1_ireqa7x wrote

The lymphatic system is over of the least talked about complete systems in the body. It's like those illustrations of the circulatory systems and the nervous systems and then years later biology teachers are like 'oh, yeah, there's another one too' and then right back to floating over it.

Seems like it's that way because it was so elusive anatomically and low key for the most part, but just like hormones are crazy important to how we work, the lymphatic system is crazy important to how things keep working. I think most people, if they even think about it, assume everything flows back directly into the circulatory system, but aside from gasses, that seems like mostly an outbound channel.

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