Rasavaha Srotas and Udakavaha Srotas

Oxygen, food and water are most important things

Udaakvahastrotas – water srotas.  70% of bodyweight is water.  Kapha actions are coincident with water.  Kapha made of water.  All dhatus have some water in it, liquid/udaak so engaged with all the dhatus.  All Kapha functions are associated with this srotas.

Udaakvahanam  srotasam talu mulam klomascha – charak vimansthan 5th chapter, 8th shloka

Talu and kloma are the two mulasthan of udaakva srotas.

Talu = palate, Kloma = physiology in the throa, not in western anatomy

Whenever you are thirsty, your throat and palate are where you really feel the dryness.

For udaakva dhatu to go around the body there is no separate system, it uses the rasa raktavaha srotas system

20% is seen in koshas – the place in between the organs and their linings of the body.  The remaining 80% is found in organs body parts and bodily fluids.  Liquids and dhatus.

Basic place where it is taken into body is the pakvashaya/ the intestines where it absorbs the liquids of the foods we take in.  Food separated in grahani into all its parts.  Leaves the body in mutra/urine, sweda/sweat, kaamala/all other wastes of the body, prashwas/excretions – exhalations, saliva.  Water might come out during illness in forms like excess sweat, diarrhea, tears etc.  leading to drushti hetu.

Dushti hetu – signs of imbalance

•           Ati shay ushnata – Too much heat – will sweat too much causing depletion of body

•           Amautpati – ama formation in body – too much ama will cause

•           Bhaya – too much fear: lead to sweating, crying.  All lead to depletion of udaaka from the body.

•           Vidahi Padartha – Alcohol or similar drinks like coffee, vidahi padarta/things that dehydrate you.  This is why not to drink on a flight because already dehydrated and then add those and

•           Shushka Anna – Dry foods – Eating foods that are dry in nature.  Ruksha quality foods.

•           AtiUshna – Eating too much hot foods both spicy and temperature wise

•           Trshana Virodh – Not paying attention to thirst, ignoring urge to drink


Too much water won’t directly affect, but rather will lead to agni mandya (kills the digestion)  first and then will affect the udaakvaha srotas

This is a huge red flag to the massive push off western nutrition and science to drink a l;ot of water and also proof that drinking alot of water does not at all cleanse your system. It just imbalances it creating disease. 



Symptoms if Udaakvaha Srotas is not working well

•           Too much thirst

•           Your tongue lips and throat feel dry


Udaakvahasrotas – doesn’t have its own system to carry it around.  Instead, its carried along in the body by the rasa and raktavaha srotas, so if something is wrong with it, there will be a problem with the rasa and/or raktavaha srotas.  And vice versa.

Ambuvahasrotas is synonymous with Udakavaha Srotas.





Rasavaha srotas is very important because it’s the dhatu which provides the nutrition to all of the other dhatus.  It is VERY important then for the other srotas.  To study rasa and rakta it is most important to study the liver.

Yakrut is the Ayurvedic word for liver. Place for Teja tattva – prime place for dhatuagni, so its important to understand the anatomy and physiology of it.  The ahar rasa that is brought there is converted into remaining dhatus by the dhatu agni.  So yakrut is very important part of rasavahasrotas.  (bhutagni is panchabhautic agni related to food, not the same).  Liver is also the prime place for pitta dosha.  The ahar rasa that comes from the grahani is the saara part that is worked upon by the dhatuagni to become the raktaagni and then forms the raktadhatu.  Liver forms raktadhatu.  Ahara rasa is carried to the liver by pratiharinisira – can be called the hepatic portal artery or hepatic artery, not clear which one it would translate to.  From the anatomical point of the liver, it usually weighs 3 lbs. and carries 13% of the body’s blood in it at any given point in time.  Yakrut Kosha/liver lining is in the form of a wheel like a bicycle wheel.


HOMEWORK – study and bring functions of the liver 


There are two lobes in the liver.  Liver is made out of lobes and each one of those is made of sub-lobes.  All the lobes have a small duct coming out of it, all these ducts come together to form a big duct called the hepatic duct.

•           KhandaKendraNeela – the liver made of different lobules and all the lobules which form the main duct.  All the small lobules have a common duct and that is the this and all of those come together to form the hepatic duct.

•           Raktavahasrotas Mulakosha – modern translation is Kuffer’s Cell –

•           Antarkhandya (inside the lobule) yakrut rohini – rohini/artery – probably means hepatic artery – goes in

•           Antarkhandya PratihariniSira – sira/vein – comes out

•           Pitta kedar – bile channel

•           Yakrut jivitak khosha – liver small cell lining

•           Yakrut upakhanda – whole liver lobule all of these form one main duct.


Tongue and organs

(Tip of the tongue)Heart (left side line)Spleen, kidney, (right side line) lungs, (right behind tip of tongue) stomach, large intestine and small intestine



Yakrut Pachak Pitta Nirmitti Formation of Pachak Pitta in Liver.

Since yakrut is the one that forms pachak pitta, it is indirectly connected to the digestion of food because that is where anavahasrotas gets its food for the digestion of food.

Pachak pitta formed of 3 elements

•           Pitta Dravya – Bilirubin – when you have jaundice, tej is higher in the body.  Urine has bilirubin in it which is why it is yellow.  It is formed in raktavahasrotasmulasthan.  After the lining of the rakta cell/hemoglobin cell is broken the mala of that process is pittadravya.  Pittadravya is formed from that breaking process – in western as well as ayurveda.  This pittadravya comes to the yakrut khosha/lining, then the yakrut and then to the anavahasrotas as needed.  That is how bile goes to the system.  Same as in western.

•           Pittakshar – bile salts – formed by the jivitakhosha (see above) parenchymal cells.  By them and in them.  From there in form of Pitta doshas they come to anavahasrotas to assist in the digestion of oily fatty foods and go back to the liver in the form of the Pratiharinisira/veins.

•           Snehadravya – cholesterol – similar to Kapha, almost present in every lining and helps in the lubrication of the organ of the lining.  If amt of cholesterol in pitta dosha goes up or is more than required it forms Pitta Ashmari – Gallstones or Bilestones.



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