Breathing is when your body is getting oxygen to your cells. When you are physically active your cells use the oxygen faster so you have to breathe faster to get the same amount of oxygen to your cells
WIthout getting too technical, Oxygen to the cells, Carbon Dioxide on the way back
Oxygen, hormones, white blood cells.
The respiratory system is responsible for getting oxygen into the body and removing carbon dioxide from the body. This process occurs through breathing, where oxygen is inhaled into the lungs and then transferred into the bloodstream to be delivered to cells throughout the body.
All the cells require oxygen, and so the way of them getting it is via the blood.
It reduces the amount of oxygen getting to your body cells.
The process is called diffusion
Cells, that's why your body needs to circulate oxygenated blood!
Sugars; as well as lipids - (both fats and oils).
The heart does not actually carry anything, it only pumps blood. The blood however, carries nutrients and oxygen to body cells and wastes away from the cells.
Red blood cells primarily carry oxygen throughout the body, binding to hemoglobin in the cells. This oxygen is essential for cell function and energy production. Additionally, red blood cells help transport nutrients, waste products, and hormones in the blood.
Red Blood cells help you get oxygen to your cells