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.)
First, you take a breath in and oxygen will travel down your wind pipe into your lungs. Then, the oxygen will enter your blood stream to be carried to cells/organs that need it. After that, when you breath out the carbon dioxide that was in your body is being carried out of your lungs, through the windpipe and out of your body.
human respiratory uses air pressure like pneumatic system does
the lungs is the basic unit structure of the human respiratory system
the respiratory system in a monk3y
The organ that is part of the frog's respiratory system that is not found in the human respiratory system is the skin. The skin is not involved in human respiration.
The respiratory system
The respiratory system starts at the nose (and mouth) and ends at the alveoli in the lungs
the respiratory system in the human body helps humans breathe. that includes lungs, trachea, and more.
Images of the human respiratory system can be viewed on several websites. Among these is Teach PE. Google Images also has many images of the human respiratory system.
AIR SACS are the FUNTIONAL UNIT of human respiratory. while we regard ALVEOLI as STRUCTURAL UNIT of human respiratory system.
The respiratory system purifies and oxygenates the blood, so that there is constant supply of oxygen to the tissues.
Circulatory system AND THE RESPIRATORY SYSTEM
The respiratory system provides the mechanism for the body to obtain oxygen and excrete carbon dioxide.