The lungs bring air into the air sacs, which are tightly wrapped with capillaries. The capillaries exchange oxygen for carbon dioxide, which the lungs expel.
Air sacs are part of the respiratory system
The respiratory and circulatory system connect in the lungs. At the alveoli, the air sacs are wrapped closely by capillaries to facilitate gas exchange.
The circulatory system and respiratory system work together to provide the body's cells with oxygen and to carry away the carbon dioxide that cells generate as respiratory waste. The respiratory system gets air into lungs and in the small air sacs were oxygen is transported into the blood, and the circulatory system carries the oxygen in the red blood cells and delivers it to cells in need of oxygen. The oxygen is stored in the hemoglobin in the blood, and the blood is pumped around the bodily organs by the heart, releasing oxygen at the organs.
they all work together and help the bird fly because a birds lungs connect to the air sacs that provide a constant supply of oxygen to the blood and make the bird more lightweight.
the aveoli
In the lungs,Blood is exchanged adn sent to different parts of the body.
By diffusion across q capillary wall
The respiratory system. The alveoli are air sacs in the lungs.
RESPIRATORY system (lungs) brings oxygen-containing air into tiny air sacs called alveoli where the oxygen diffuses into the CIRCULATORY SYSTEM (blood vessels) and carbon dioxide diffuses out of the blood vessels which is then exhaled.
air sacs
The respiratory system
The muscular system provides additional movement to create a relative vacuum in the lungs, which draws air into the air sacs. The respiratory system provides oxygen that muscles need to create movement.