Ayurveda explains about 7 body tissue components which form the physical body. The functioning of body tissue is regulated by Tridosha. Let us learn about each of them in detail.
These seven body tissues are called as ‘Dhatu’ in Ayurveda.
They are -
Rasa Dhatu – The Rasa is produced soon after digestion. It is the essence part of the food that circulates allover the body and nourishes all the body tissues. It is grossly compared to plasma part of blood. Its basic function is Preenana - to nourish all the body tissues.
It is controlled by Kapha Dosha. Usually Kapha Dosha increase causes increase of Rasa Dhatu. and Kapha decrease leads to Rasa dhatu decrease.
Rakta Dhatu – It is compared directly with blood and its component. It is formed by receiving the nourishment from Rasa Dhatu. Its main function is Jeevana - enlivening. It is directly related with Pitta Dosha. Pitta Dosha increase leads to Rakta increase and vice versa.
Mamsa Dhatu – It is compared with muscle tissue. It gets its nourishment from Rakta Dhatu. Its main function is Lepana – It gives shape to the body parts and it sticks to the bones, helping in locomotor activities. It is controlled by Kapha Dosha. Usually Kapha Dosha increase and decrease leads to Mamsa Dhatu increase and decrease respectively.
Meda Dhatu – It is compared to fat tissue. It gets nourished by Mamsa Dhatu. Its main function is Snehana – lubrication. Its increase and decrease is influenced by Kapha Dosha. Hence, Kapha dosha dominant person is usually rich in fat tissue.
Asthi Dhatu – It is compared to bone tissue. It gets nourished by Meda Dhatu. Its main function is Dharana – to hold the body up straight. It is influenced by Vata Dosha. But Vata Dosha increase leads to Asthi Dhatu decrease and Vata Dosha decrease leads to Asthi Dhatu increase. This is why, in old age, when Vata is increased, bone tissue degeneration occurs.
Majja Dhatu – It is compared to bone marrow and all the tissue that fill bone cavity. For example, eye tissue is also considered as Majja. Some also consider brain tissue also as formed by Majja Dhatu. Its main function is Poorana – to fill in the bone cavities. Its increase and decrease is controlled by Kapha Dosha.
Shukra Dhatu – It is compared with male and female reproductive system and its secretions. Its main function is Garbhotpadana – reproduction. It is controlled by Kapha Dosha. It gets nourishment from Majja Dhatu.