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Village Square / Re: Using juts without a heart
« on: June 01, 2017, 03:21:35 PM »If he still has a nervous system, he will still be able to move around for a time. As to whether he'll still be able to perform jutsu - his ability to do so will be severely diminished because as Shadow noted, the heart holds a large portion of the person's chakra. Depending on how the fight has gone thus far (I haven't been following), Athos may or may not have already used a significant portion of his chakra. If he has, then he'll be even worse off.
In the second Naruto Fanbook, Kishimoto stated that one thing that could kill Hidan was malnutrition. Well, using a little SCIENCE! we can see that without a heart, Athos will eventually lose the fight. Why? Cellular respiration.
Without a heart pumping blood through Athos' body, there's no way to transport oxygen to different parts of his body. The blood is just going to pool in his extremities. No blood circulation means no diffusion of new oxygen molecules across cell membranes throughout his body. No new oxygen molecules means no production of ATP (the "energy" source that the body uses for everything). No ATP means no movement, no speaking, no production of chakra, nothing.
In the case of malnutrition and starvation: The two things you need to produce ATP (technically there's more things you need, but they're intermediate products in the entire cellular respiration process that are produced from oxygen and glucose) are glucose (the carbohydrate we get from foods) and oxygen. No glucose, you still can't produce ATP.
This is a grossly simplified explanation, but it serves its purpose. SCIENCE, BITCH!
To be fair, science can't really be applied to this situation Mainly due to the fact that Hidan was a severed head and still cursing up a storm. That should be impossible considering there's no lungs for air to go into and out of. And I don't remember exactly the damage done, but if he didn't have his larynx then it shouldn't be possible for him to make noise at all either. And the whole thing about blood could be thrown out the window too because in my personal experience, severed carotid arteries usually result in unresponsiveness in about 10-15 seconds. Because Hidan was still wide awake and angry the whole time when he should be unconscious, you can't really use blood as an argument. So in the end, it's a manga so it's all silly ninja magic.