Oxygen (O2) enters the blood through inhalation and is circulated throughout the body.
Carbon Dioxide (CO2) is filtered out of the blood as a waste product and exhaled.
The blood pressure is usually high when blood leaves the small arteries and enters the capillaries.
The blood pressure is usually high when blood leaves the small arteries and enters the capillaries.
NUTRIENTS AND OXYGEN also water, minerals, and vitamins
The oxygenated blood first enters the left atrium
Blood that leaves the pulmonary alveoli are fully oxygenated whereas the blood entering them are partially deoxygenated.
the answer is quite simple ...... carbon dioxide is the waste gas and it leaves the blood and then leaves the body when you exhale.
Circulatory system
For an average adult human, 5 percent of the blood supply enters or leaves the heart with each heartbeat.
White Blood Cells
When blood leaves the lungs through the pulmonary veins, it returns to the heart and enters the left ventricle.
carbon dioxide
It enters the arteries.