How does oxygen get into the muscle?
In order to move, you need muscles that can contract. To supply these muscles, in turn, oxygen is necessary, which is taken in with the air you breathe. But how does the inhaled oxygen actually get to the various muscles in the body?
This is how the oxygen gets into the blood
To understand how the oxygen in the air gets into the muscle, a rough overview of the body- and pulmonary circulation in the human body.
- The oxygen is produced by contraction of the respiratory muscles along with the air through the nose (or the mouth) and from there it reaches the lungs via the trachea and the left and right main bronchus.
- In the lungs, the air you breathe is transported through the so-called bronchi, which branch out into the smaller bronchioles. From these, in turn, the even smaller alveoli branch off.
- The alveoli are surrounded by tiny blood vessels called capillaries. They are so thin-walled that oxygen can diffuse through them into the blood.
And so it is directed to the muscles
- The oxygen-enriched blood in the pulmonary capillaries collects in the pulmonary veins, which carry it further into the left atrium and into the left ventricle.
- As the left heart muscle contracts, the oxygen-rich blood is then pumped through the arteries into the body's circulation and thus to the muscles and organs.
- Similar to the bronchi, the arteries branch out into smaller arterioles, which in turn branch out into Capillaries branch out, allowing diffusion of oxygen among other things into the muscle cells of the body enables.
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The blood circulation is necessary for the body to be able to live. Him to ...
After the oxygen has been delivered to the muscles and organs, the blood is transferred to the venules and veins right ventricle and from there back into the lungs, so that the cycle starts all over again can.
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