Table of Contents
What happens to the blood in the body tissues?
When the heart pumps, blood moves through the circulatory system. Blood leaving the heart through the arteries is full of oxygen. The arteries branch off into smaller and smaller tubes. These bring oxygen and other nutrients to the cells of the body’s tissues and organs.
What happens to blood in the lungs?
In the lungs, the blood is supplied with oxygen, and then it goes back to the heart, which pumps the oxygen-rich blood to the rest of your body.
What happens in the lungs and in the body tissues with gas exchange?
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
How does the blood get oxygenated in the lungs?
Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
How does the blood flow through the heart and lungs?
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
What is blood in the lungs called?
Hemothorax is a collection of blood in the space between the chest wall and the lung (the pleural cavity).
How oxygen is transported from lungs to tissues?
Oxygen transport within the human body occurs through both convection and diffusion. Oxygen diffuses from both the alveoli into the pulmonary capillaries and the systemic capillaries into the tissues, according to Fick’s laws of diffusion and the random walk of the diffusing particles.
What happens during gas exchange in the tissue?
Gas Exchange with Tissues Red blood cells carry the oxygen into the capillaries of the tissues of the body. Oxygen diffuses into the cells of the tissues, while carbon dioxide diffuses out of the cells of the tissues and into the bloodstream.
What is the blood supply to the lungs?
The blood supply to the tissues of the lung, its lymph nodes, bronchi and visceral pleura, comes from the bronchial arteries. The venous drainage of the alveoli and the small bronchi is provided by the pulmonary veins, whereas that of the larger bronchi is via the bronchial veins.