oxygen (O2) enters the body via respiration (breathing) it enters small pouches in the lungs called alveoli. these alveoli are surrounded by tiny blood vessels called capillaries. there is an exchange at these alveoli, carbon dioxide (CO2) exits the blood and O2 enters the blood. this freshly oxygenated blood is now returned via the pulmonary vein to the Left side of the heart. the left ventricle pumps blood to the body. as the blood vessels get smaller they again form capillaries. there is another exchange of gasses, O2 is transferred out to the cells and CO2 (the waste product from cellular metabolism) is transferred to the blood. the Deoxygenated blood is then returned via the venous system to the right side of the heart. the deoxygenated blood is pumped back to the lungs and the alveoli via the pulmonary artery. and then the whole cycle starts over again.
hope this helps :)
Oxygen enters the body through the nose and mouth as humans breathe in. The respiratory system supplies oxygen to the blood in order for the blood to deliver oxygen to the parts of the body.
By osmosis and diffusion through the lungs.
The respiratory system.
by inhaling it or breathing
No part of the human body is made up of oxygen, we breathe in oxygen and breathe out carbon dioxide, oxygen does not stay in our bodies.
Hydrogen makes up 10% of the human body, Oxygen makes up 65% of the human body, and Carbon makes up 18% of the human body. Hydrogen combines with the Oxygen to create water that is also inside of the human body. -Hope this answers your question.
Human nerve cells allows information from the brain to be carried to other parts of the body BUT plant guard cells allows the amount of oxygen to enter the stomata.
based on our fundemental constituant being Carbon and its adherance to oxygen as CO2 and Hydrogen H2O (being 70% approx of body mass), then on mass is would be Oxygen.
Oxygen is the most abundant element in the human body, followed by Carbon, Hydrogen and Nitrogen. Calcium is abundant, as well.
Lungs
Oxygen plays a massive role in the human body. Oxygen is responsible for delivering nutrients to the cells in the human body.
How does hydrogen enter the human body?
Oxygen is important to human body because it aid in breathing
Oxygen plays a massive role in the human body. Oxygen is responsible for delivering nutrients to the cells in the human body.
Oxygen enters via the lungs.
Approximately 83% of the human body is either oxygen or carbon. About 18% percent of the human body is carbon and around 65% is oxygen.
Oxygen is important to human body because it aid in breathing
Oxygen is important to human body because it aid in breathing
Oxygen is important to human body because it aid in breathing
By mass Oxygen
Through your MOUTH and your NOSE.