# prāṇavaha srotas (प्राणवहस्रोतस्) > Canonical version of this page: https://nighantu.ageayurveda.com/lexicon/pranavaha-srotas/ An Ayurvedic technical term, rendered into English in 7 different ways. The renderings do not agree, and the difference between them changes what the term is taken to mean. ## Identification | Field | Value | | --- | --- | | Transliteration | prāṇavaha srotas | | Devanagari | प्राणवहस्रोतस् | | Also written | prāṇavahāni srotāṃsi, prāṇavaha srotāṃsi, prāṇavahasrotaḥ, prāṇavāhīni srotāṃsi (Ca.Vi.5/10) | | Category, as gathered | srotas (body channel) — anatomy/physiology | | Grouped under | Body: tissues, wastes and channels | | Classical citations | 4 | | Citations checked | 2026-10-08 | ## How it is translated, and whether the translation holds Each rendering is given with the source that uses it. The assessment is ours. ### Conduit for vital life WHO International Standard Terminologies on Ayurveda (2022) · ITA-2.5.6 · standards-body comparator WHO's own gloss; its description reads 'Channels in the body which originate from the heart and carry and circulate vital life (prana) throughout the body.' Note WHO separately codes ucchvāsamārgaḥ (ITA-2.5.7) as 'Respiratory tract', i.e. WHO does NOT equate prāṇavaha srotas with the respiratory tract. Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### Vitiation of channels carrying vital life force WHO International Standard Terminologies on Ayurveda (2022) · ITA-5.5.2 prāṇavahasrotoduṣṭiḥ · standards-body comparator (disorder term) Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### channels carrying prāṇa/ channels of respiration/respiratory system NAMASTE Portal, Standardised Ayurveda Terminologies (Ministry of Ayush, India) · SAT-B.473 · national terminology comparator NAMASTE explicitly offers the respiratory-system equation that WHO withholds. Its long definition adds 'It is compared to the respiratory system and the diseases of prāṇavahasrotas are to be treated on the basis of treatment principles of respiratory diseses like śwāsa.' Reproduced unaltered and attributed from the Government of India NAMASTE terminology, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### disorders of prāṇavahasrotas / derangement of prāṇavaha srotas NAMASTE National Ayurveda Morbidity Codes · NAMC EA, EA-1 · morbidity-code comparator Reproduced unaltered and attributed from the Government of India NAMASTE terminology, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### injury to prāṇavahasrotas NAMASTE National Ayurveda Morbidity Codes · NAMC LH-4.1, referenced to Su.Sa.9/12 · morbidity-code comparator Reproduced unaltered and attributed from the Government of India NAMASTE terminology, which is what that licence permits, and deliberately absent from the downloadable dataset, which is CC BY 4.0. ### The two Srotas (channels) of Prana (bronchi) Kaviraj Kunja Lal Bhishagratna, Sushruta Samhita (1911) · Śārīrasthāna IX.11–12 · public-domain translation Bhishagratna glosses the pair as 'bronchi', a 1911 anatomical identification, not a translation of the Sanskrit. ### pranavaha (carrying vital energy) Charak Samhita Research, Training and Skill Development Centre (carakasamhitaonline.com), 2020 · Sroto Vimana, abstract · modern translation (in copyright; rendering recorded as comparator only) ## The classical passages ### Caraka Saṃhitā Vimāna Sthāna 5 (Srotasāṃ Vimāna):5/8, checked against the source > तत्र प्राणवहानां स्रोतसां हृदयं मूलं महास्रोतश्च, प्रदुष्टानां तु खल्वेषामिदं विशेषविज्ञानं भवति;तद्यथा- अतिसृष्टमतिबद्धं कुपितमल्पाल्पमभीक्ष्णं वा सशब्दशूलमुच्छ्वसन्तं दृष्ट्वा प्राणवहान्यस्य स्रोतांसि प्रदुष्टानीति विद्यात्| Sanskrit mūla · https://www.carakasamhitaonline.com/index.php/Sroto_Vimana Root (mūla) of prāṇavaha srotas per Caraka = hṛdaya (heart) and mahāsrotas (the great channel / gut); vitiation signs are breathing that is too long, too obstructed, agitated, shallow-and-frequent, or with sound and pain. ### Caraka Saṃhitā Vimāna Sthāna 5:5/7, checked against the source > तद्यथा प्राणोदकान्नरसरुधिरमांसमेदोस्थिमज्जशुक्रमूत्रपुरीषस्वेदवहानीति Sanskrit mūla · https://www.carakasamhitaonline.com/index.php/Sroto_Vimana Caraka's enumeration of the thirteen gross srotas opens with prāṇa-vaha. ### Caraka Saṃhitā Vimāna Sthāna 5:5/10, checked against the source > क्षयात् सन्धारणाद्रौक्ष्याद्व्यायामात् क्षुधितस्य च| प्राणवाहीनि दुष्यन्ति स्रोतांस्यन्यैश्च दारुणैः||१०|| Sanskrit mūla · https://www.carakasamhitaonline.com/index.php/Sroto_Vimana Causes of vitiation; also attests the variant stem prāṇa-vāhīni (not prāṇavaha) in the metrical section. ### Suśruta Saṃhitā Śārīra Sthāna 9 (Dhamanī-Vyākaraṇa-Śārīra):11–12 (Bhishagratna's numbering; Sanskrit editions and NAMASTE cite 9/12), checked against the source > The two Srotas (channels) of Prana (bronchi) have their roots in the heart and the Rasa-carrying Dhamanis (pulmonary arteries). An injury to any of these Srotas (vessels) produces groaning, bending down of the body, loss of consciousness (Moha), illusion, and shivering, or may ultimately prove fatal. tr. Kaviraj Kunja Lal Bhishagratna (1911) · https://www.wisdomlib.org/hinduism/book/sushruta-samhita-volume-3-sharirasthana/d/doc142889.html Suśruta's root for prāṇavaha srotas = heart + rasa-carrying dhamanīs, and treats it as a PAIR (two), unlike Caraka's unnumbered plural. Directly disagrees with Caraka's 'hṛdaya + mahāsrotas'. ## Not to be confused with - **prāṇa vāyu.** prāṇa vāyu is one of the five subtypes of vāta (a functional force); prāṇavaha srotas is the channel system it moves in. Confusing them collapses substance/conduit. - **ucchvāsamārga (respiratory tract).** WHO codes these as two separate terms (ITA-2.5.6 vs ITA-2.5.7). The respiratory tract is defined anatomically 'from the external nares to the alveoli'; prāṇavaha srotas is defined functionally and, in Caraka, is rooted in heart + mahāsrotas, which is not the airway. - **mahāsrotas.** mahāsrotas is one of prāṇavaha srotas' two roots in Caraka, not a synonym. WHO (ITA.3.11.1) defines mahāsrotas as 'The major inner cavity of the body from the mouth to anus', i.e. the gut, not the airway. - **rasavaha srotas.** In Suśruta both are rooted in the heart and both, when injured, produce overlapping signs; Suśruta explicitly says injury to rasavaha produces 'symptoms identical with those developed by a hurt to the Prana-vaha channels'. ## Renderings that do not hold - bronchi. Bhishagratna's 1911 parenthetical gloss, not the Sanskrit. It imports a 19th-century anatomical identification and is inconsistent with Caraka, who roots the channel in the heart and the gut. - the respiratory system. A workable clinical shorthand (NAMASTE adopts it) but not a translation. WHO deliberately keeps 'respiratory tract' as a separate term. Using it as the entry definition erases Caraka's mahāsrotas root. - pranic channels / channels of life force (as an esoteric energy). Popular-Ayurveda rendering that assimilates prāṇa to yogic/New-Age prāṇa and to nāḍīs. Classical srotas are material conduits with named anatomical roots and named injury signs. ## Open questions Recorded rather than resolved. - Does mahāsrotas in Ca.Vi.5/8 mean the gut (as WHO's mahāsrotas entry implies) or the thoracic 'great channel'? Commentators differ and this decides whether the Caraka channel is respiratory at all. - Is Suśruta's 'two' a real dual anatomy or a convention of the Śārīra chapter (which pairs all eleven)? ## Citation Age Ayurveda Nighantu, "prāṇavaha srotas", https://nighantu.ageayurveda.com/lexicon/pranavaha-srotas/, CC BY 4.0. Whole lexicon: https://nighantu.ageayurveda.com/lexicon.json and https://nighantu.ageayurveda.com/lexicon.csv. Educational reference only. A term entry explains what a word means and how it has been translated. Nothing here is advice.