it starts with the hear and enters the valve through the atrium
If you mean not specifically, they are the veins.
The veins bring deoxygenated blood back to the heart where it is then pumped through th lungs to become re-oxygenated.
Which vessels carry deoxygenated blood from different parts of the body to the heart
Deoxygenated blood from the lower body travels through the Inferior Vena cave. Deoxygenated blood from the upper body travels through the Superior Vena Cave. Both vessels empty into the Right Atrium.
Tissue fluid is returned to circulation through the lymphatic system, where it is collected in lymph capillaries and transported back to the bloodstream through lymphatic vessels.
The veins
in most cases, veins carry deoxygenated blood. the exception to this are the pulmonary veins which carry oxygenated blood. all veins carry blood back to the heart, while arteries carry blood away from the heart.
No, veins carry deoxygenated blood back to the heart... Coronary vessels carry blood IN the heart.
Pulmonary arteries carry deoxygenated blood from the right ventricle.
Deoxygenated With the exception of the pulmonary vessels, veins carry deoxygenated blood; arteries carry oxygenated blood.
The pulmonary vein brings in oxygenated blood from the lungs through the left atrium and ventricle up into the aorta which then carries the oxygenated blood through the body. The vena cava (main vein) on the right side carries deoxygenated blood through the right atrium through the right ventricle up into the pulmonary artery, which carries the deoxygenated blood to the lungs to get oxygenated again. The pulmonary artery is the only artery to carry deaoxygenated blood.
The lymph nodes are the only lymphatic organ with afferent vessels. Afferent vessels carry lymph fluid into the lymph nodes, where it is filtered and processed before being returned to circulation through efferent vessels.