After blood travels through the pulmonary valve inside the heart, it then travels into the pulmonary artery into the lungs. Here it will be oxygenated. Later after it exits the lungs it will then travel through the pulmonary vein back into the heart where it enters the left atrium (above the mitral, or bicuspid valve).
Most arteries are coloured in diagrams red to signify that they carry oxygenated blood, with the de-oxygenated blood-carrying veins coloured blue. However, in the pulmonary artery and vein these colours are reversed, since the oxygenation takes place in the lungs after traversing the right atrium and ventricle of the heart. This is why most correctly coloured diagrams will shade the pulmonary artery blue and the pulmonary vein red.
through seminular valve at the time of ventricle contaraction blood from right ventricle is pumped to lungs.
Oxygenated blood enters the heart in the pulmonary vein. It passes through the left ventricle, before exiting in the aorta.
lungs
Pulmonary trunk
pulmonary vein
The pulmonary artery carries oxygen deficient blood. Blood that returns to the heart passes through the right atrium and ventricle, through the pulmonary artery, to the lungs where gas exchange occurs. Subsequently, oxygen rich blood returns to the heart via the pulmonary vein. Blood then passes through the left atrium and ventricle, and out to the systemic circulation.
I believe the first vessel is the pulmonary trunk which brings the deoxygenated blood to the pulmonary arteries and so on....
The large blood vessel is called the aorta.
The pulmonary artery, because it's the only vessel that oxygenates blood to the lungs.
The Superior Vena Cava carries the collected de-oxygenated blood to where it joins the Inferior Vena Cava- which drains the lower part of the body - to form a short common vessel which enters the right atrium of the heart, passes through the Tricuspid Valve into the right ventricle, from where it is ejected through the Pulmonary Valve into the Pulmonary Artery.---> The PULMONARY ARTERY is the only artery in the body which carries de-oxygenated blood.
When the blood flows from the right ventricle, it passes through pulmonic valve before it reaches pulmonary artery. Pulomic valve closes as blood passes here to prevent back flow.
pulmonary vein