Why do insects survive after their heads are removed?

Insects are different from humans, the breath of insects has nothing to do with their heads, and the respiratory organs of insects are stomata and are on the body. The nervous system of insects is very primitive, and many of the functions that belong to the brain for us humans are completed by the somatic ganglia for insects, mainly including motor functions, so many insects can still run and fly after their heads are cut off, and they can still survive. The role of the head of the insect is not as great as imagined, and some insects with more primitive and vigorous vitality are starved to death because they cannot eat after the head is cut off.

This is because its body is full of nerves, and like other animals, even after the head is dropped, because the nerves are not completely dead, they will continue to twitch for a certain period of time until they are completely dead.

Because the body structure of insects is very special, the respiratory organs of insects are in the abdomen and will not suffocate, insects do not have brains, and all activities rely on ganglia throughout the body, so the head of insects is not so important.

Because the respiratory system of insects is not the head, they breathe through the stomata on the body, so the loss of the head does not have much impact on their survival.

Many organisms do not have a brain that controls the entire body like vertebrates, but different parts have their own nerve centers, and the head only provides some general information to the body, and the specific actions are determined by the body itself. So the head is off, but the command is gone, and it's still okay for the army below to walk around. In addition, insects do not need to supply a large amount of blood to the brain like warm-blooded vertebrates, and they will not hang up due to blood loss after the head falls off.

Because their respiratory system does not stop immediately, they can survive for a while.

First of all, the respiration of insects has nothing to do with the head, the respiratory organs of insects are stomata and are on the body.

Secondly, the nervous system of insects is very primitive, and many functions that belong to the brain for us humans are completed by the systemic ganglia for insects, mainly including motor functions, so many insects can still run and fly after their heads are cut off.

Therefore, the effect of the head on insects is not as great as you think, and some insects with more primitive and strong vitality are starved to death because they can't eat after cutting off their heads.