Yes. Chakras are the points, or vortexes, where the nadis emerge from and converge to. They are lokas, and doorways into other worlds populated by elemental deities. Heavens. The Kingdom of Heaven lies within, truly, and the system of chakras is its internal cosmology, the inward projection of the universe through the imprimatur of the soul.
There are many chakras, of which the Eastern Kaula school (ie, Bengal Kali Krama), speaks of 6 major chakras, a further 5 minor ones above that, and then the 7th major chakra.
This is in the sat chakra nirupana and the paduka pancaka, both translated by John Woodroffe in The Serpent Power. Unfortunately, this is the only real information about chakras that most subsequent writings have relied on, being watered down the further out they get. People wrote books based on the Serpent Power. And then people wrote books based on those books. And then.. and so on.
Such that talk of chakras is commonplace, without real teaching or practice, as talk of hatha yoga is common place, without real teaching or practice. Largely, these things are unhelpful, or marginally helpful, or sometimes distracting if not downright damaging.
There are however other sources, barely noticed in the new age spiritual supermarket feeding frenzy on this topic, which circulate among devotees and scholars, to the extent that there is a difference.
[All scholarship should be devotional, or the real meaning is not extracted as nectar from ink. There are many levels of speech (Vak, the Adi-Shakti), the scriptures in their ink form speak, but correct perception of the vaikhari meaning unlocks, successively, the other levels, which requires tapasya(effulgence and qualification from dilligent practice of yoga/sadhana, the strength of endeavor (some will translate tapas as penance: I believe endeavor is more appropriate, the meaning is somewhere in between)) or diksha (initiation from the guru, empowering the disciple to the inner meanings)]. Ultimately they are the same, there is no yoga comparable to guru yoga. Guru's face is to be seen in the scriptures, whether that is a guru without, or the adi-guru within]
These sources include account from vaishnava-sahajiya, trika, siddha siddhanta (nath), and other Kaula branches such as Sri Vidya.
For example, Gorakhnath talks about chakras beyond the Sahasrara, that is, above the head. There is also discussion of chakras corresponding to hell-realms below the muladhara at the base of the spine.
An in-depth study of chakras is very much wanting.