The blood vessels that enter the left side of the heart carry deoxygenated blood. The blood sent to the lungs via pulmonary arteries is also deoxygenated blood. The blood carried to the left side of the heart from lungs is oxygenated blood. The blood sent to the body via systemic arteries is oxygenated blood. So the right side of the heart deals with deoxygenated blood. Left side of the heart deals with oxygenated blood. The amount of blood flows is almost exactly same in both the sides of the heart. The only difference is you can measure the blood pressure from the greater circulation easily. So you tend to imagine that there is more blood in the greater circulation. The blood flow via pulmonary circulation can not be measured. So it is usually taken for granted and neglected. This blood flow is equally important.( Just like you take it for grated the gifts of the nature. Pure and fresh air, sunlight, rains and trees. Rather the ecosystem.)
Some of them do. For the most part, the ones carrying blood INTO the heart (veins) carry deoxygenated blood, and the ones carrying blood FROM the heart (arteries) carry oxygenated blood. The exceptions are the pulmonary arteries and veins, which are exactly reversed from that general description; these are the vessels that carry deoxygenated blood from the heart to the lungs to be oxygenated, and oxygenated blood back from the lungs to the heart to be distributed throughout the body.
The heart circulates both oxygenated and deoxygenated blood but along different paths - the human heart has 4 chambers which enable it to do this.
Veins carry blood towards the heart. The particular veins that carry deoxygenated blood from the body to the right atrium of the heart are the superior vena cava and inferior vena cava. The pulmonary veins carry oxygenated blood from the lungs into the left atrium.
oxygenated blood
oxygenated blood
maybe your question goes this way..."how does oxygen enter the blood from the lungs?"Two types of blood vessels carry blood throughout our bodies: The arteries carry oxygenated blood (blood that has received oxygen from the lungs) from the heart to the rest of the body. The blood then travels through the veins back to the heart and lungs, where it receives more oxygen.
De-oxygenated blood is dark red. Oxygenated blood is bright red. Both enter the heart- the former enters the right heart; the latter enters the left heart.
The hilum is the medial depression in the kidney where the blood and lymph vessels and nerves enter.
Veins only carry blood away from the body and back to the heart. Arteries carry blood away from the heart. There are two main venae, the superior and the inferior venae cavae, that enter the heart carrying oxygen poor blood. Then the pulmonary artery carries that blood to the lungs, where it is oxygenated. The oxygenated blood then travels back to the heart via the pulmonary vein and then is pumped to the rest of the body through the aorta, the main artery leading to the rest of the body.
Through the blood vessels.
All bones have foramen in them. These are canals or openings through which nerves and blood vessels go.
Capillary exchange- exchange of gases- internal or tissue respiration
usually nutrients enter the blood vessels through the small intestines
Artery - Carries oxygenated blood (apart from pulmonary artery which goes to the lungs to collect oxygen) away from the heart to other parts of the body. They have thick muscle walls and small spaces for blood to pass through. Vein - Carries de-oxygenated blood (apart from the pulmonary vein which goes from the lungs back to the heart) towards the heart, from other parts of the body. They have thin muscle walls and a large space for the blood to travel through. Capillaries - Allow oxygenated blood to enter muscles and other body parts, and allow de-oxygenated blood back in, in order to carry it back to the heart. Very small with thin walls to allow movement of blood cells through the walls. Hope this helps