Capillaries - they are the smallest vessels that serve as arteries and veins.
Oxygen diffuses into body cells at the capillaries. These are the smallest blood vessels in the circulatory system.
i think they are the capillaries
capillaries
Kahn’s
because it can flow also blood in these blood vessels or the stay there if the cells need oxygen
Blood vessels carry oxygen and nutrients to the cells and removes CO2 and waste.
The air sacs send oxygen to the cells.
Red blood cells.
The tiniest blood vessels that carry oxygen-rich blood are the capillaries. These capillaries form a bed. The arterioles that carry the blood into the bed are high in oxygen. The oxygen is released to the cells. The rest of the bed is low in oxygen and venules carry deoxygenated blood to the veins back to the heart.
capilaries
capilaries
YES
Capillaries
This is so the red blood cells can get oxygen to move on.
Human bodies take air into the lungs and remove oxygen from it (air is about 21% oxygen). In the alveoli (air sacs within the lungs) oxygen passes into the bloodstream where it is absorbed by the chemical hemoglobin in red blood cells. The oxygen is carried to all the cells of the body. The blood cells pick up carbon dioxide that the cells create when they oxidize food to get energy. This carbon dioxide is returned to the lungs, where it leaves the blood and is released from the body when you exhale.
Oxygen gets delivered to the body by pumping through the heart and lungs and going on to the capillaries to trade co2 with oxygen. Nutrients get delivered to our body's cells the same way except food is involved.