Naruto – Chakra
Introduction
Simply put, Chakra is the energy you use when performing a jutsu. So, in order to perform techniques/jutsu’s, the Chakra can come from two locations: the cells in Your body, and the mental and spiritual energy thats gained from training and experience.
Chakra
Ninja’s with experienced chakra control can perform jutsus using the minimal amount. However, poor chakra control users will use more chakra than needed to complete their jutsu.
The flow of chakra is possible via circulatory system. From a microscopic level, there are hundred of small channel pathways that are connected to the vital points through out the body. These channels carry the flow of the chakra and allow the user to mold it. However, if these channels are severely damaged, not even the most skilled medical ninja would be able to repair it unfortunately. From a large scale, the chakra circulatory system includes 361 tenketsu, which are tiny points on the system which the chakra is allowed to flow.
The Byakugan and the Hyuuga clan’s Juuken, also known as Gentle Fist attack, allows them to eject chakra from their hands and into the tenketsu of other opponents. This type of attack will block the flow of chakra that comes from these tiny points within the circulatory system, rendering chakra flow. With enough tenketsu closed, your flow of chakra will be heavily reduced, if not to nothing; thus, eliminating your ability to perform jutsu. And because ninja can not train their internal organs, the damage done to the tenketsu will also damage nearby