the respiratory system
capillaries
the blood vessel which allows gas exchange to occur is the capillaries
capillaries
capillaries, which are small blood vessels with thin walls that allow for the exchange of gases, nutrients, and waste products between the blood and tissue cells. This exchange is facilitated by diffusion across the thin capillary walls.
gases exchange .to release heat.
The movement of oxygen and carbon dioxide gases across pulmonary capillaries in the alveoli occurs via simple diffusion. This process allows these gases to move from areas of higher concentration to areas of lower concentration—oxygen diffuses from the alveoli into the blood, while carbon dioxide diffuses from the blood into the alveoli. This passive transport does not require energy and relies on the concentration gradients of the gases.
Across the alveoli and capillaries.
At the boundary between the capillaries and the alveoli, gas exchange occurs through a process called diffusion. Oxygen from the alveoli moves into the blood within the capillaries, while carbon dioxide from the blood is released into the alveoli to be exhaled. This exchange happens across the thin walls of the alveoli and capillaries, which are composed of single layers of cells, facilitating efficient transfer due to the concentration gradients of the gases.
diffusion across their body surface (cell surface membrane)
All blood vessels allow gases, such as oxygen and nitrogen, as well as liquids, enzymes, etc, to pass through them. Food particles, once absorbed by the small intestines, become part of this process.
they are not
They EXCHANGES GASES The Same Way As We Do. OXYGENEnters Their LUNGS And Exits Out As CARBON DIOXIDE.