expression, godan verb (-u)
blood flows; be alive
Literally means blood circulates; used to indicate that someone or something is alive, often in contrast to being cold or lifeless.
彼の手は冷たくて、血が通っていないようだった。
His hands were cold, as if no blood was flowing through them.
この人形はまるで血が通っ
This doll looks as if it were alive.
expression, godan verb (-u)
humane; show humanity
Figurative use: describes a person, organization, or system that shows warmth, compassion, or human feeling, as opposed to being cold or mechanical.
あの政治家の演説には血が通っていない。
That politician's speech lacks humanity.
この会社の方針は冷たくて、血が通っていないと思う。
I think this company's policies are cold and lack human warmth.