Gaseous exchange occurs in the alveoli (singular = alveolus) of the lungs.
The primary function of the respiratory system is to provide for the exchange of respiratory gases(O2, CO2) between the organism and the environment.
The body system that exchanges o2 and co2 between blood and air is called the respiratory system. It is composed of the nose, windpipe, and lungs. It;s in the lungs that the exchange takes place.
Respiratory system provides O2 to all other body systems , no life is possible with out O2 .
In the respiratory system, we see the exchange of gases. In this gas exchange, carbon dioxide (CO2) leaves the blood and goes into air in the lungs, and oxygen (O2) leaves the air in the lungs and goes into the blood. It is this gas exchange, which occurs in the alveoli, that permits oxygenation of the blood and keeps us alive.
Respiratory system provides O2 to digestive system which is essential for all cells and their working .
as when we take air( o2) ,the broncheol(have a special type of skin which take the o2 thru blod flow for all cells present in human body),so mainly the respiratory system linked to circulartory system to provide o2 to cells of the body.
The respiratory system is composed of moist passageways that permit air to flow from the external environment to the lungs. In the lungs, blood vessels carrying CO2 on hemoglobin molecules releases the CO2 at the alveoli in exchange for O2. The CO2 is breathed out through the lungs, while the fresh O2 travels through the bloodstream to the cells in all parts of the body. (The first sentence is an extremely simplified and narrow description of the respiratory system, which is much more complicated.)
The primary system to get rid of CO2 is the respiratory system. But it is aided by the circulatory system which delivers CO2 to the aveoli, where hemoglobin on Red blood cells then picks up O2 to take back to the cells.
The respiratory system supplies the body with O2 (respiration). This system also disposes of CO2 (ventilation). The respiratory system houses the olfactory receptors. Gas exchange between blood and air in the alveoli(external respiration)Gas exchange between the blood and cellular tissue (internal respiration).
Ch2o + o + o2 -> co2 + h2o + atp
Respiration ! The process by which CO2 is exhaled from the lungs and is replaced by O2
Capillaries are the connection between arterioles and venules. The capillaries job is to enable the exchange of oxygen, water, carbon-dioxide, chemical substances and various nutrients to between blood and the surrounding tissue.