different between arteries , veins, capillaries
Answers
Arteries carry blood away from the heart; the main artery is the aorta. ..
. Capillaries carry blood away from the body and exchange nutrients, waste, and oxygen with tissues at the cellular level.
Veins are blood vessels that bring blood back to the heart and drain blood from organs and limbs.
Answer:
The difference between arteries, capillaries and veins
The main differences between the veins, capillaries and arteries (all parts of the circulatory system) are as follows.
Capillaries have no muscular walls
Capillaries are the thinnest ducts of these three categories , by far. On the other hand, its walls are not associated with muscular tissues.
The veins return to the heart, arteries come out of it
The arteries are the first type of conduit through which the blood passes through the heart. The veins, on the other hand, are the ducts of entrance to this.
The capillaries fulfill the function of “bridge”
The capillaries lie between the veins and the arteries . That is, they are ramifications that leave the arteries and rejoin to form veins.
Arteries maintain blood pressure
The arteries cause the blood to flow, preserving the pressure inside the heart . In the interior of the veins, however, this pressure does not occur, and so does the capillaries.
Veins carry non-oxygenated blood, the other two with oxygen
As it is their turn to return to the heart, the blood that transports the veins has already lost its oxygen by the way , and for that reason must be taken back to the lungs to the zones occupied by the alveoli.
Veins have valves
As the blood flowing through the veins is not subject to the pressure generated by the impulse of the heart, it is carried to its destination by a system of valves that prevent this liquid from going in the opposite direction to the one that should go.