While the 5 primary pranas (life force or chi) function in the Prana (energy) body (naturally), they also have a relationship with the chakras. In other words, while they primarily work in one body, they relate with others.
|Ananda||bliss||Udana||upward moving||throat to head, speech and sensing||5||Vishuddha|
|Prana||energy||Vyana||whole body||aura, movement overall||2||Svadhisthana|
|Anna||physical||Apana||downward flowing||pelvis down, elimination||1||Muladhara|
Notice how, for example, the mental body corresponds with the 3rd chakra but thought movement is in the prana body, run by the 2nd. Assimilating experiences mentally is 3rd. The chakras in the head relate to the brain but on a much higher level than local mind.
We speak from the 5th, which is also associated with “mental speech” and with sensing but the senses are tied to the mind and the third. It’s all tied together and works in unison.