How and where is the blood enriched with oxygen in humans
Answers
Answer:
In our alveoli
Explanation:
The air enters our body through nostrils, through pharynx and trachea enters our lungs. Then it goes to the bronchi and then to the bronchioles and then finally to alveoli.
While on the other hand, the deoxygenated blood is plumbed to lungs by right ventricle through pulmonary veins. The exchange of gas then takes place in alveoli and the oxygenated blood is passed to our entire body.
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Answer:
lungs
Explanation:
The heart is a large, muscular organ that pumps blood filled with oxygen and nutrients through the blood vessels to the body tissues. It's made up of:
4 chambers. The 2 upper chambers are the atria. They receive and collect blood. The 2 lower chambers are the ventricles. They pump blood to other parts of your body. Here is the process:
The right atrium receives blood from the body. This blood is low in oxygen. This is the blood from the veins.
The right ventricle pumps the blood from the right atrium into the lungs to pick up oxygen and remove carbon dioxide.
The left atrium receives blood from the lungs. This blood is rich in oxygen.
The left ventricle pumps the blood from the left atrium out to the body, supplying all organs with oxygen-rich blood.
4 valves. The 4 valves are the aortic, pulmonary, mitral, and tricuspid valves. They let blood flow forward and prevent the backward flow.
Blood vessels. These bring blood to the lungs, where oxygen enters the bloodstream, and then to the body:
The inferior and superior vena cava bring oxygen-poor blood from the body into the right atrium.
The pulmonary artery channels oxygen-poor blood from the right ventricle into the lungs, where oxygen enters the bloodstream.
The pulmonary veins bring oxygen-rich blood to the left atrium.
The aorta channels oxygen-rich blood to the body from the left ventricle.
An electrical system that stimulates contraction of the heart muscle.
A network of arteries and veins also carry blood throughout the body:
Arteries transport blood from the heart to the body tissues.
Veins carry blood back to the heart.
Medical Reviewers:
Glenn Gandelman MD MPH
Lu Cunningham