Question

26. ( Name the blood vessel that brings oxygenated blood to the human heart.
(11) Which chamber of human heart receives oxygenated blood?
a) Explain how oxygenated blood from this chamber is sent to all parts of the body.​

Answer 1

Answer:

.pulmonary viens are the blood vessel that brings oxigenated blood from lungs to the heart

.right chamber of human heart are recieve oxygenated blood

.when blood becomes oxygenated after passes from all 4 chamber ,the oxygenated blood finally passes through aorta to all the body parts

Answer 2

Answer:

 

(i)  The blood vessel that brings oxygenated blood to the human heart is the Pulmonary Vein.

(ii)  The chamber of the heart that receives the oxygenated blood from the lungs is Left Atrium.

(iii) The oxygenated blood from the lungs comes to the thin walled upper chamber of the left part known as Left Atrium.From the thin walled chamber it goes to the left Ventricle as the muscles contract.As the left ventricle contracts the pure blood is sent to the rest part of the body ,ie, to organs → Tissues → cell  through blood vessels(arteries) .The smallest blood vessel which is nearly of one cell thick is known as Capillaries.

      Similarly , impure blood flows back to the heart through  veins to the capillaries → veins → right atrium → right ventricle → lungs for purification.