The Compendium of Caraka 3.5.9

3.5.9

srotāṃsi,sirāḥ,dhamanyaḥ,rasāyanyaḥ,rasavāhinyaḥ,nāḍyaḥ,panthānaḥ,mārgāḥ,śarīracchidrāṇi,saṃvṛtāsaṃvṛtāni,sthānāni,āśayāḥ,niketāśceti śarīradhātvavakāśānāṃ lakṣyālakṣyāṇāṃ nāmāni bhavanti/

Channels (srotas), veins (sirā), arteries (dhamanī), lymphatics (rasāyanī), rasa-carrying vessels (rasavāhinī), tubes (nāḍī), pathways (panthan), passages (mārga), bodily openings (śarīracchidra), closed and open spaces (saṃvṛtāsaṃvṛta), seats (sthāna), receptacles (āśaya), and dwellings (niketa)—these are the names for the discernible and indiscernible spaces of the bodily dhātus.