Though the lungs... It enters the lungs and the aveloli in the terminal end of the lung causes lung to enter the bloodstream.
Your nose and mouth.
they enter the bloodstream. when you get cut for example, the capillaries are broken, so there, the pathogens enter.
Oxygen and carbon dioxide travel into and out of the bloodstream via diffusion across alveolar and capillary membranes.
The carrier of food and gases to the body cells is the bloodstream. Oxygen and nutrients are transported by red blood cells, while carbon dioxide and other waste products are carried away from the cells by the bloodstream.
After germs enter the blood stream, they become the problem of the person whose body they are in. They also become the problem of the doctor who must make the person well again.
Blood picks up oxygen and releases carbon dioxide in the lungs.
Blood picks up oxygen and releases carbon dioxide in the lungs.
In the bloodstream
Oxygen (O2) enters your body through breathing air, which contains oxygen in it. This oxygen goes into your lungs where it is put into the bloodstream, supplied to cells in your body, returned to the lungs as carbon dioxide (CO2), and exhaled through the lungs.
the lungs!!
The bloodstream is the roads, the railways, and the airports of the body. Everything that goes from one part of the body to another enters the bloodstream at some point.
The lung,maybe.
Air can enter the body by the mouth or the nose. Air then goes down the windpipe to the lungs where it can enter the bloodstream.
Your nose and mouth.
Lungs
most people by measuring the amount of CO2 (carbon dioxide) in your bloodstream. if you have COPD then the body checks on the amount of oxygen in the bloodstream
Your nose and mouth.