I suppose that means blood vessels and nerves, other than that which seems run throughout most tissue. Do I misunderstand that? I know there are larger, distinct, nerves and blood vessels, but I thought there were small amounts of both in all tissue.
That being said, what is the problem, other than it sounds gross? Any close anatomical look at animal based foods is going to be gross.
But, most folks will have eaten sausage, which (I though) used intestines as casing. Or have had tripe, or sweetbreads, or heart or liver.
I mean, folks eat whole oysters. Think about it.
Thx!
TomB