You can deactivate your account temporarily and choose to come back whenever you want. To deactivate your account: 1  Click the account menu at the top right of any Facebook page. 2  Select Settings. 3  Click Security in the left column. 4  Choose Deactivate your account then follow the steps to confirm.
In the alveoli Alveolus (also called air sac) is the capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place by diffusion.
The respiratory system â¦ does this through  breathing. When we breathe, we inhale oxygen and exhale carbon  dioxide. This exchange of gases is the respiratory system's means  of getting oxygen to the blood.To ensure that the body receives  enough oxygen and to expel waste, carbon dioxide.he respiratory system â¦ does this through  breathing. When we breathe, we inhale oxygen and exhale carbon  dioxide. This exchange of gases is the respiratory system's means  of getting oxygen to the blood.