Well! Medicine here is not quite different from the real world though we use chakra for most of the processes. Because of this, Medical Ninjas are very adept at controlling their chakra due to how advanced and delicate the process is. All comes down to knowing how the anatomy works thus one is able to know how to heal them or put them in the right condition. We are going to be seeing a broader aspect of NB Medicine as we move on in the training process.
Iryō-nin (Medical Ninja)
A medical ninja is a ninja who has learned to make use of Ninjutsu and related skills to provide medical treatment to others. It also encompasses those that, using that knowledge, have enhanced their own combat abilities.
In Naruto Manga, fields like Kinjutsu, Fuuinjutsu and Poison techniques are deeply rooted into Medical Knowledge. Orochimaru is a fair example of how Medical Knowledge can be used to achieve greater power but he isn't the only one.
In Narutobase RPG, the medical ninja is capable of healing others and himself, cure poisonings, enhance his sealing knowledge and skill, develop his regenerative abilities and even learn to use poison techniques in combat.
Medical Ninjutsu is not unlike regular ninjutsu where you use your chakra to achieve effects that you would not be able to otherwise. Most Medical Ninjutsu techniques, however, are deeply rooted into Yang Release and make perfect use of Physical Energy.
Homework:
Students need to write a small text where they explain what chakra is, how it works and how the human body relates to chakra in narutoverse.