Any medical ninja knows that one of the key aspects of healing a patient is to ensure his body is in balance. Though, in narutoverse, this goes into close proximity with ones chakra. As such, any disturbance to one, disturbs the other.
Our body has important key points to ensure this balance. These points are associated with important nerves in our body which are, by extension, closely associated with our chakra system. By disrupting nerves you can achieve a multitude of effects, from the practical "numbness" and "paralization" of a given area to loss of conscience to disturbances to your heart rate to loss of conscience.
Only Medical Ninjas receive training in this area in hand to hand combat. Knowing the weak spots in the body as well as what happens when you attack them is essential in both treating ninjas and defending yourself. There are various weak points and we won't list them as most of them are common knowledge (eyes, groin, heart, throat, etc etc) but some, specially those that require anatomical knowledge and pressure point knowledge as well as the effects that trigger from them are your upper hand in a fight. Some are in that image, others, like the occipital ridge or the vagus nerve will require you to do some homework.
There is currently only a few techniques that take use of this knowledge:
The Ranshinsho is a ninjutsu technique where the ninja turns their chakra into an electrical pulse which is transmitted into an enemy's body by striking the base of their neck. The electrical impulse travels up their brain stem and disrupts the flow of electricity in the nervous system. The brain cannot work like this, thus all communication between the brain and body are confused, causing a person to move their arm when they should be moving their leg, and generally debilitating them. Only an unusually skilled ninja would be able to overcome such a handicap.
Finally a combat jutsu, eh? lol. It's important to point out that this isn't Juuken in any aspect. Juuken uses chakra to disrupt chakra lines, Ranshihsho is a lightning based jutsu which makes the nerves go wild; and it can only be used in the way that is described above, variations aren't possible.
(Iryo Ninjutsu: Ranshinshou) Medical Technique: Chaotic Mental Collision
Type:Supplementary
Rank:A-Rank
Range:Short
Chakra Cost:30
Damage Points: N/A
Description:
Manipulating the chakra in their hand, the user can create an electric field to disrupt the target's nervous system. Because the brain and body communicate using electrical impulses, the user can use the field to disrupt the target's ability to move. The result is the commands to move one body part being relayed to another, making it near impossible for the opponent to move unless they have high skill and understanding of the body or with time. This effect can be achieved by making contact with the enemy, preferably near or directly on his spine (neck, lower back, etc). Contact with a single limb or body part will affect only its symmetric counterpart. The effects last for 10 turns unless countered but are short live in high level taijutsu users (Jyuken users, EIG users), which have an unparalleled awareness of their body movement, quickly adjusting themselves to their new nervous arrangement and in medical ninjas, who possess a high level of awareness of their own bodily functions, achieving the same effect by pure control and adaptability.
Another use of this knowledge is to achieve local anesthesia or numbness through a simpler application of the same concept:
(Iryō Raikō Ninjutsu: Shinkeikei Konran no Jutsu) Lightning Medical Technique: Skill of Nervous System Confusion
Rank: B-Rank
Type: Supplementary
Range: Short
Chakra cost: 20
Damage: N/A
Description: The user charges electrical chakra into his index finger and hits the opponent. Doing so temporarily neutralizes all feeling to the targeted area for a limited amount of time, essentially anesthetizing it (by overloading and numbing the nerves with the electrical discharge), allowing the medical ninja to perform minor surgery or sutures without the patient having to endure the pain or being able to move his body part. This type of local anesthesia is very effective on the limbs and superficial tissues and, depending on which nerve cluster/pressure point/body area its applied to, can even leave a whole limb anesthetized. In battle, this skill can be used with free form taijutsu to great effect, though, due to the rapid contact, will produce a shorter effect.
Note: Lasts 5 turns for medical uses but only one turn if used offensively
But this knowledge doesn't stop here. As one learns medical ninjutsu, one gains knowledge of the chakra, chakra system and tenketsu throughout the body. While one can't, without the Byakugan, seen these minute details, a medical ninja is knowledgeable enough to, through the use of Diagnosis, know the location of each person's tenketsu as well as his chakra lines when performing said skill. While closing a tenketsu requires jyuuken mastery, opening one requires either that or medical mastery. Through a medical technique, you can re-open closed tenketsu and chakra lines. A medical ninja also becomes able to feel and evaluate the Eight Inner Gates of a patient, if they were opened or not before, if they are healthy or not and if they, if opened, will burst and kill the user or not. They can't, however, manipulate from the outside, these gates to neither forcefully open or close them. They can't, either, heal damaged Inner Gates.
While this knowledge is essential for diagnosing the problems, it can be extremely important when restoring missed body parts, doing surgery or treating the result of various techniques, like the aforementioned Jyuuken but also the result of opening the Eight Inner Gates, etc etc.
Finally, some battle skills and techniques resort to damaging a tarks chakra system either by damaging the chakra pathways or by disturbing ones chakra flow. Genjutsu is a good example of this. Because patients like these exist, Medical Ninjas needed to learn how to treat them and as such developed techniques to help in this task.
There are a few things that can't be done though, like healing the Eight Inner Gates. But there are many more that can. For example, restoring chakra, calming the chakra flow and restoring it to normal, opening up closed tenketsu, rebuilding missing chakra lines and finally, purging mallicious chakra or energy from a patients body.
All of this is done through these techniques that revolve around chakra, chakra pathways and chakra flow:
(Iryo Ninjutsu: Kūgeki no Tenketsu) Medical Technique: Open Tenketsu
Type: Supplementary
Rank: A-Rank
Range: Short
Chakra: 30
Damage: N/A
Description: The medical ninja, once having diagnosed the patient as having a Tenketsu traumatically closed, will press one of his palms on the vicinity of the Tenketsu affected and use his own chakra to open it. While one can open several Tenketsu with one use, if the patient has more than half of his Tenketsu closed, the technique will need to be used again. The final core tenketsu (#361) cannot be opened if closed.
Note: Can only be used by medical ninjas
(Iryo Ninjutsu: Modosu Heikō) Medical Technique: Restore Balance
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 40
Damage: N/A
Description: When facing a patient with a chakra disturbance or an abnormal chakra flow, the medical ninja will place his hand on the patients chest and use his chakra to calm and retore the normal flow of chakra of the patient. This technique can essentially dispel chakra abnormalities and allow for healing techniques to work better. The result is leaving the patients chakra in a calm and healthy flow. Additionally, as a side effect, this technique leaves the patient complete calm and relaxed, without pain or stiffness. It can also be used to dispel Genjutsu the patient might be under the influence of, including Doujutsu Genjutsu and pure Yin Release techniques. The medical ninja, however, cannot use this on himself.
Note: Can only be used by medical ninjas.
(Iryo Fuuinjutsu: Setsuzoku no Chakra) Medical Sealing Technique: Chakra Link
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 40 (-100 per turn for the user, +100 per turn for the patient)
Damage: N/A
Description: An otherwise simple technique in concept, it stands as a very complex technique. The medical ninja, when facing a patient with depleted or near depleted chakra, will link his own chakra flow with that of the patient, sharing some of his chakra with the patient. Because not all ninjas have the ability of chakra transfer, medical ninjas developed a sealing technique to allow this. The user will take 2 small paper tags with a seal inscribed containing one the kanji for "Donor" and the other the kanji for "Recipient". He will place the respective tags in their place on the chest (one on him or a donor, and the other on the person that needs the chakra) and do the Horse+Hare+Tiger handseal, triggering the technique. The seal on the paper tag will expand and spread across the targets body. The donor seal and the recipient seal are connected to each other and as such make it possible to link both chakra networks. Immediately, the chakra will start to flow from the one with more chakra to the one with less chakra. Without medical knowledge and mastery, one wouldn't be able to link both chakra networks without hurting both targets but without chakra transfer abilities of their own, a medical ninja needs the seal to mediate the transfer. Once the transfer is under way, it can be cancelled by doing the same handseals in an inverse order or let it take it course as the seal has a safeguard to prevent death. The seal will only serve to, at most, equalize both targets chakra levels, never allowing the donor to drop below the recipient. For example, if the donor has 1002 points of chakra and the recipient has 2 points, the technique will end when both are left with 502 points of chakra. A drawback of the technique is that both participants need to have their chakras calm and undisturbed. If one is under the effect of a genjutsu it will pass to the other and if one has natural energy mixed with his chakra and the other is incapable of dealing with it, he will petrify. A big vantage of the technique is that while one needs the ritual to trigger it, once it starts, both parties no longer need to be near eachother, allowing the medical ninja to treat other patients while donating his chakra or even go to another battlefield to help in another front. Additionally, the seal is refined enough to filter Natural Energy and other harmful energies that might be coursing inside the donors or recipients chakra system, allowing the use to cause no harm to either side due to those factors.
Note: Can only be used by medical ninjas with sealing mastery.
(Iryo Ninjutsu: Saiken no Keiro) Medical Technique: Rebuilding Chakra Pathways
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 100
Damage: N/A
Description: A simple technique designed solely to help rebuild and regenerate lost or destroyed chakra pathways. In essence, its a more advanced and highly specific form of Mystical Palm in which the user will focus large amounts of chakra (orange in color) on his palms and, through it, helps rebuild chakra pathways on a patient. This technique, despite being Medical in nature, actually has a very strong Yang component. The user needs to visualize the chakra pathway and will it to regenerate back to its former form. The technique is very hard to use, requires lots of concentration and focus, consumes a lot of chakra and takes a lot of time. To rebuild the chakra pathways in an area like the patients hand, the user will take 3 or 4 turns of continous use. This technique cannot rebuild Eight Inner Gates nor destroyed Tenketsu.
Note: Can only be used by medical ninjas.
(Iryo Fuuinjutsu: Chakra Kiyomeru) Medical Sealing Technique: Chakra Purge
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 70
Damage: N/A
Description: A sealing technique designed to purge mallicious or harmful chakra from a patient. The user will place a small paper tag with the kanji "Purge" on the patients chest and do the confrontation handseal with his other hand. The tag will activate, spreading a circular sealing formula on the chest of the patient. The seal will then draw onto itself all the harmful and external chakra that might be present in the users path way. This can work to revert incomplete jinchuriki transformations, curse mark transformations, sage mode, etc. As long as there's an external chakra or energy that isn't the patients native one coursing through him, this seal will draw it in and purge it from the patient. Once the seal does its job, the tag becomes pitch black and crumbles into ash.
Note: can only be used by medical ninjas with sealing mastery.
Training:
Use each of the techniques and methods in various situations.
Again, I'll let you come up with the situations, two for each of you.
Our body has important key points to ensure this balance. These points are associated with important nerves in our body which are, by extension, closely associated with our chakra system. By disrupting nerves you can achieve a multitude of effects, from the practical "numbness" and "paralization" of a given area to loss of conscience to disturbances to your heart rate to loss of conscience.
You must be registered for see images
Only Medical Ninjas receive training in this area in hand to hand combat. Knowing the weak spots in the body as well as what happens when you attack them is essential in both treating ninjas and defending yourself. There are various weak points and we won't list them as most of them are common knowledge (eyes, groin, heart, throat, etc etc) but some, specially those that require anatomical knowledge and pressure point knowledge as well as the effects that trigger from them are your upper hand in a fight. Some are in that image, others, like the occipital ridge or the vagus nerve will require you to do some homework.
There is currently only a few techniques that take use of this knowledge:
The Ranshinsho is a ninjutsu technique where the ninja turns their chakra into an electrical pulse which is transmitted into an enemy's body by striking the base of their neck. The electrical impulse travels up their brain stem and disrupts the flow of electricity in the nervous system. The brain cannot work like this, thus all communication between the brain and body are confused, causing a person to move their arm when they should be moving their leg, and generally debilitating them. Only an unusually skilled ninja would be able to overcome such a handicap.
Finally a combat jutsu, eh? lol. It's important to point out that this isn't Juuken in any aspect. Juuken uses chakra to disrupt chakra lines, Ranshihsho is a lightning based jutsu which makes the nerves go wild; and it can only be used in the way that is described above, variations aren't possible.
(Iryo Ninjutsu: Ranshinshou) Medical Technique: Chaotic Mental Collision
Type:Supplementary
Rank:A-Rank
Range:Short
Chakra Cost:30
Damage Points: N/A
Description:
Manipulating the chakra in their hand, the user can create an electric field to disrupt the target's nervous system. Because the brain and body communicate using electrical impulses, the user can use the field to disrupt the target's ability to move. The result is the commands to move one body part being relayed to another, making it near impossible for the opponent to move unless they have high skill and understanding of the body or with time. This effect can be achieved by making contact with the enemy, preferably near or directly on his spine (neck, lower back, etc). Contact with a single limb or body part will affect only its symmetric counterpart. The effects last for 10 turns unless countered but are short live in high level taijutsu users (Jyuken users, EIG users), which have an unparalleled awareness of their body movement, quickly adjusting themselves to their new nervous arrangement and in medical ninjas, who possess a high level of awareness of their own bodily functions, achieving the same effect by pure control and adaptability.
Another use of this knowledge is to achieve local anesthesia or numbness through a simpler application of the same concept:
(Iryō Raikō Ninjutsu: Shinkeikei Konran no Jutsu) Lightning Medical Technique: Skill of Nervous System Confusion
Rank: B-Rank
Type: Supplementary
Range: Short
Chakra cost: 20
Damage: N/A
Description: The user charges electrical chakra into his index finger and hits the opponent. Doing so temporarily neutralizes all feeling to the targeted area for a limited amount of time, essentially anesthetizing it (by overloading and numbing the nerves with the electrical discharge), allowing the medical ninja to perform minor surgery or sutures without the patient having to endure the pain or being able to move his body part. This type of local anesthesia is very effective on the limbs and superficial tissues and, depending on which nerve cluster/pressure point/body area its applied to, can even leave a whole limb anesthetized. In battle, this skill can be used with free form taijutsu to great effect, though, due to the rapid contact, will produce a shorter effect.
Note: Lasts 5 turns for medical uses but only one turn if used offensively
You must be registered for see images
But this knowledge doesn't stop here. As one learns medical ninjutsu, one gains knowledge of the chakra, chakra system and tenketsu throughout the body. While one can't, without the Byakugan, seen these minute details, a medical ninja is knowledgeable enough to, through the use of Diagnosis, know the location of each person's tenketsu as well as his chakra lines when performing said skill. While closing a tenketsu requires jyuuken mastery, opening one requires either that or medical mastery. Through a medical technique, you can re-open closed tenketsu and chakra lines. A medical ninja also becomes able to feel and evaluate the Eight Inner Gates of a patient, if they were opened or not before, if they are healthy or not and if they, if opened, will burst and kill the user or not. They can't, however, manipulate from the outside, these gates to neither forcefully open or close them. They can't, either, heal damaged Inner Gates.
While this knowledge is essential for diagnosing the problems, it can be extremely important when restoring missed body parts, doing surgery or treating the result of various techniques, like the aforementioned Jyuuken but also the result of opening the Eight Inner Gates, etc etc.
Finally, some battle skills and techniques resort to damaging a tarks chakra system either by damaging the chakra pathways or by disturbing ones chakra flow. Genjutsu is a good example of this. Because patients like these exist, Medical Ninjas needed to learn how to treat them and as such developed techniques to help in this task.
There are a few things that can't be done though, like healing the Eight Inner Gates. But there are many more that can. For example, restoring chakra, calming the chakra flow and restoring it to normal, opening up closed tenketsu, rebuilding missing chakra lines and finally, purging mallicious chakra or energy from a patients body.
All of this is done through these techniques that revolve around chakra, chakra pathways and chakra flow:
(Iryo Ninjutsu: Kūgeki no Tenketsu) Medical Technique: Open Tenketsu
Type: Supplementary
Rank: A-Rank
Range: Short
Chakra: 30
Damage: N/A
Description: The medical ninja, once having diagnosed the patient as having a Tenketsu traumatically closed, will press one of his palms on the vicinity of the Tenketsu affected and use his own chakra to open it. While one can open several Tenketsu with one use, if the patient has more than half of his Tenketsu closed, the technique will need to be used again. The final core tenketsu (#361) cannot be opened if closed.
Note: Can only be used by medical ninjas
(Iryo Ninjutsu: Modosu Heikō) Medical Technique: Restore Balance
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 40
Damage: N/A
Description: When facing a patient with a chakra disturbance or an abnormal chakra flow, the medical ninja will place his hand on the patients chest and use his chakra to calm and retore the normal flow of chakra of the patient. This technique can essentially dispel chakra abnormalities and allow for healing techniques to work better. The result is leaving the patients chakra in a calm and healthy flow. Additionally, as a side effect, this technique leaves the patient complete calm and relaxed, without pain or stiffness. It can also be used to dispel Genjutsu the patient might be under the influence of, including Doujutsu Genjutsu and pure Yin Release techniques. The medical ninja, however, cannot use this on himself.
Note: Can only be used by medical ninjas.
(Iryo Fuuinjutsu: Setsuzoku no Chakra) Medical Sealing Technique: Chakra Link
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 40 (-100 per turn for the user, +100 per turn for the patient)
Damage: N/A
Description: An otherwise simple technique in concept, it stands as a very complex technique. The medical ninja, when facing a patient with depleted or near depleted chakra, will link his own chakra flow with that of the patient, sharing some of his chakra with the patient. Because not all ninjas have the ability of chakra transfer, medical ninjas developed a sealing technique to allow this. The user will take 2 small paper tags with a seal inscribed containing one the kanji for "Donor" and the other the kanji for "Recipient". He will place the respective tags in their place on the chest (one on him or a donor, and the other on the person that needs the chakra) and do the Horse+Hare+Tiger handseal, triggering the technique. The seal on the paper tag will expand and spread across the targets body. The donor seal and the recipient seal are connected to each other and as such make it possible to link both chakra networks. Immediately, the chakra will start to flow from the one with more chakra to the one with less chakra. Without medical knowledge and mastery, one wouldn't be able to link both chakra networks without hurting both targets but without chakra transfer abilities of their own, a medical ninja needs the seal to mediate the transfer. Once the transfer is under way, it can be cancelled by doing the same handseals in an inverse order or let it take it course as the seal has a safeguard to prevent death. The seal will only serve to, at most, equalize both targets chakra levels, never allowing the donor to drop below the recipient. For example, if the donor has 1002 points of chakra and the recipient has 2 points, the technique will end when both are left with 502 points of chakra. A drawback of the technique is that both participants need to have their chakras calm and undisturbed. If one is under the effect of a genjutsu it will pass to the other and if one has natural energy mixed with his chakra and the other is incapable of dealing with it, he will petrify. A big vantage of the technique is that while one needs the ritual to trigger it, once it starts, both parties no longer need to be near eachother, allowing the medical ninja to treat other patients while donating his chakra or even go to another battlefield to help in another front. Additionally, the seal is refined enough to filter Natural Energy and other harmful energies that might be coursing inside the donors or recipients chakra system, allowing the use to cause no harm to either side due to those factors.
Note: Can only be used by medical ninjas with sealing mastery.
(Iryo Ninjutsu: Saiken no Keiro) Medical Technique: Rebuilding Chakra Pathways
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 100
Damage: N/A
Description: A simple technique designed solely to help rebuild and regenerate lost or destroyed chakra pathways. In essence, its a more advanced and highly specific form of Mystical Palm in which the user will focus large amounts of chakra (orange in color) on his palms and, through it, helps rebuild chakra pathways on a patient. This technique, despite being Medical in nature, actually has a very strong Yang component. The user needs to visualize the chakra pathway and will it to regenerate back to its former form. The technique is very hard to use, requires lots of concentration and focus, consumes a lot of chakra and takes a lot of time. To rebuild the chakra pathways in an area like the patients hand, the user will take 3 or 4 turns of continous use. This technique cannot rebuild Eight Inner Gates nor destroyed Tenketsu.
Note: Can only be used by medical ninjas.
(Iryo Fuuinjutsu: Chakra Kiyomeru) Medical Sealing Technique: Chakra Purge
Type: Supplementary
Rank: S-Rank
Range: Short
Chakra: 70
Damage: N/A
Description: A sealing technique designed to purge mallicious or harmful chakra from a patient. The user will place a small paper tag with the kanji "Purge" on the patients chest and do the confrontation handseal with his other hand. The tag will activate, spreading a circular sealing formula on the chest of the patient. The seal will then draw onto itself all the harmful and external chakra that might be present in the users path way. This can work to revert incomplete jinchuriki transformations, curse mark transformations, sage mode, etc. As long as there's an external chakra or energy that isn't the patients native one coursing through him, this seal will draw it in and purge it from the patient. Once the seal does its job, the tag becomes pitch black and crumbles into ash.
Note: can only be used by medical ninjas with sealing mastery.
Training:
Use each of the techniques and methods in various situations.
Again, I'll let you come up with the situations, two for each of you.
