Blame
Responsibility
The blame radical and the blame kanji are the same, because you still blame those bad shellfish for giving you food poisoning and making your rib cage visible. Actually, you blame them so much that you're now formally asking them to take responsibility too.
せき
せ
None
One thing you can't blame the shellfish for is making you so darn sexy (せき). Even in your emaciated, food-poisoned state, you're still one of the sexiest people around.