The T Cell Zones of Lung Draining Lymph Nodes

The majority of the particulates were in macrophages. They weren't in other cells, but they weren't in these sub-captular sinus macrophages that collect things. The idea here is you can't really do much about it now, but if you've been alive for a while and you breathe a lot of particulates, it's probably impacted your ability to protect against infection.

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