Through the blood. Oxygen is drawn in by the lungs, binds to hemoglobin proteins within erythrocytes (aka red blood cells), and the erythrocytes are then pumped by the heart throughout the body, supplying all cells with oxygen.
Red blood cells drop off oxygen to tissues and cells in the body through the process of diffusion in capillaries. Oxygen molecules bind to hemoglobin in red blood cells in the lungs and are released when the red blood cells reach tissues with lower oxygen concentration.
Oxygen is transported to the tissues by red blood cells through the circulatory system. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to the tissues throughout the body. At the tissue level, oxygen diffuses from the capillaries into the surrounding cells for cellular respiration.
Oxygen is transported to the respiring tissues through the bloodstream. It is first inhaled into the lungs, where it diffuses into the blood vessels in the alveoli. Hemoglobin in red blood cells binds to the oxygen, allowing it to be carried throughout the body and released to cells in need of oxygen for respiration.
by diffusion
The circulatory system, specifically blood vessels like arteries and capillaries, distribute nutrients and oxygen to cells throughout the body. Blood, which carries these essential substances, is pumped by the heart and circulated through the blood vessels to reach all cells.
because it is a tactical procedure
The respiratory and cardiovascular systems work in tandem to provide oxygen to the body's cells.
Deoxygenated blood, also referred to as oxygen-poor blood or venous blood. This blood is returning to the heart after delivering oxygen to the body's cells.
oxygen
Flatworms and jellyfish don't have a circulatory system and in these animals, the oxygen is diffused through the cells.
Red blood cells drop off oxygen to tissues and cells in the body through the process of diffusion in capillaries. Oxygen molecules bind to hemoglobin in red blood cells in the lungs and are released when the red blood cells reach tissues with lower oxygen concentration.
Red blood cells release their oxygen in the capillaries. The oxygen diffuses across the capillary wall to reach the body tissues.
Pathogens
Arteries carry blood, oxygenated by the lungs, to the cells of the body. Since the heart is a large muscle, its cells need oxygen too. When one of the arteries supplying the heart with oxygenated blood is blocked ("occluded") the oxygen cannot reach the cells supplied by that artery.
The circulatory system and respiratory system work together to provide the body's cells with oxygen and to carry away the carbon dioxide that cells generate as respiratory waste. The respiratory system gets air into lungs and in the small air sacs were oxygen is transported into the blood, and the circulatory system carries the oxygen in the red blood cells and delivers it to cells in need of oxygen. The oxygen is stored in the hemoglobin in the blood, and the blood is pumped around the bodily organs by the heart, releasing oxygen at the organs.
Oxygen from the mother's blood diffuses across the placenta into the foetal blood. This oxygen is then carried by red blood cells to the cells of the foetus through the circulatory system. The exchange of oxygen and carbon dioxide occurs at the capillaries, allowing oxygen to reach the foetal cells for cellular respiration.
axons neurons , cells help protect the bodys defense system against infection ..auto-immune defiency ...also oxygen