There is an exchange with oxygen, nutrients, and carbon dioxide and water vapor.
what happens as the blood flows through the lung capillaries
The capillaries exchange carbon dixoide from the blood with oxygen from the air sacs.
Binds to the hemoglobin in the blood.
Deoxgenated Blood become oxygenated.
Blood become oxgenated.
Blood passes through the capillaries, which provide a passage way for the blood from the arteries to the veins. The tiny, thin walled capillaries also allow for the exchange of gases through the tissue. You can read more about capillaries at fi.edu
lungs
Oxygen passes from the blood into organs through the wall of capillaries.
oxygen
aerteries
The alveoli and capillaries in the lungs pass oxygen to the blood. Both have very thin walls, which allow the oxygen to pass from the alveoli to the blood. The capillaries then connect to larger blood vessels, called veins, which bring the oxygenated blood from the lungs to the heart.
Dexoygenated blood being brought back to the heart from the body via veins enters the superior or inferior vena cava (largest vein) which empties into the right atrium, it passes through the tricuspid valve into the right ventricle, it then passes through the pulmonary valve into the pulmonary trunk to the left and right pulmonary arteries which carries blood to the left and right lungs where blood picks up oxygen and drops off carbon dioxide, it then returns through the right and left pulmonary veins into the left atrium then it passes through the bicuspid valve into the left ventricle, then passes through the aortic valve into the aorta and back to the rest of the body through arteries
Oxygen passes from the air sacs in the lungs to the blood in the capillaries, carbon dioxide passes the other way.
The tiniest tubes that carry blood are the capillaries. These connect arteries and veins.
That would be the heart. The pulmonary vein carries oxygenated blood from the lungs to the heart's left ventricle, it then travels through the left atrium and out the aorta into the arteries and then the arterioles. It then enters the capillaries, here the oxygen diffuses into the cells of the body, and carbon dioxide diffused into the capillaries and bloodstream. The blood then continues to the veinoles, veins and back into the heart through the inferior or superior vena cava, into the right ventricle, right atrium and out through the pulmonary artery to collect oxygen from the lungs again. So starting from the beginning, the diagram of blood flow is as follows: Lungs - pulmonary vein - left ventricle - left atrium - aorta - arteries - arterioles - capillaries - veinoles - veins - superior/inferior vena cava - right ventricle - right atrium - pulmonary artery. And the cycle continues :)
When oxygen is inhaled into the lungs, it fills the alveoli and is then absorbed into the surrounding capillaries. It then travels from the capillaries to small venules then onto the pulmonary vein. It then exits the heart through the aortic arch which splits into many different arteries. These arteries split into smaller arterioles then further into capillaries. Oxygen is released from the red blood cells and passes through the thin capillary walls and is absorbed into cells.
through seminular valve at the time of ventricle contaraction blood from right ventricle is pumped to lungs.