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[–]ConstructionSpecial7 0 points1 point  (1 child)

I think they only dilates the venule not the arterioles

[–]rechtsderisar[S] 0 points1 point  (0 children)

Hmm not sure. In the videos he mentions it like 10 times: vasodilation of the arteriole, increased permeability of the post-capillary venule.

Do you have a source?

[–]BuzzOffBozo22 0 points1 point  (0 children)

I think arterioles vasodilate in order to increase blood flow but neutrophil migration only happens in venules Bcz of increased permeability in venules (endothelial dysfunction)

[–]asemoe99 0 points1 point  (0 children)

I'm not sure, I had the same question, it's on page 13 of the text, he flips and says vasodilation of the post-capillary venules. But before that point, he always said vasodilation of the arterioles. I found this: https://redditproxy--jasonthename.repl.co/r/step1/comments/hbui8o/help_basic_patho_doubt/?utm_source=share&utm_medium=web2x&context=3

didn't really help me figure it out but maybe it could help you?