Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
Blood flows in a circle from lungs to tissues and back. At the lungs O2 gets into the blood and CO2 gets out - at the tissues O2 leaves the blood and CO2 enters.
Oxygen in & carbon dioxide out. The change occurs within the cells and blood carries the gasses between the lungs and the cells.
oxygen and blood flow
A drop in blood flow, or blood pressure, is known as hypotension. Other terms can be used to describe the specific lack of blood flow, such as "ischemia," and "hypoxia."
Circulation
oxygen
Exercise increases blood flow to the brain. The brain needs oxygen to function, so the more blood flow, the more oxygen, the better the brain works.