While the woman's skeletal structure was the same as any other human skeleton he had seen in textbooks or online, the same couldn't be said about her organs.
Upon stepping into the Fifth Tier, the organs generally associated with bodily functions would shrink, especially ones such as the lungs, liver, stomach, and intestines, which would become less effective as one grew in power.
Their main reason being the body would become more dependent on utilizing Mana to sustain life instead of eating or breathing. As such, they became unnecessary and shrank, giving way to more important things such as the Codex and heart.
Seeing as it was Cynrik's first time getting an up-close and personal interaction with a being such as the Governess, it made sense that his Mad Scientist brain would want to study it.
To him, this was no different from getting his hands on an alien species, and he wanted nothing more than to figure out how everything worked.