it's called, your face.
They are called Alveoli.
Pleura
No, pericarditis is inflammation of the sac surrounding the heart. Pneumonitis is inflammation of the lungs.
They are called alveoli.
this is called the placenta
Deoxygenated blood is pumped through pulmonary arteries to elastic sac-like structures in the lungs called alveoli. These alveoli are where the exchange of carbon dioxide for oxygen takes place during the process of respiration.
The pericardium is the sac-like membrane surrounding the heart in the fetal pig, as well as in humans.
amniotic sac
The fluid surrounding the fetus is called amniotic fluid. It is contained within the amniotic sac and plays a crucial role in protecting the fetus, allowing for movement, and maintaining a stable temperature. Additionally, it facilitates the development of the lungs and digestive system as the fetus swallows and inhales the fluid.
The fluid-filled sac surrounding the developing embryo or fetus is called the amniotic sac. It is filled with amniotic fluid that protects and cushions the fetus, helping to regulate its temperature and provide room for movement.
Sac-like organs are called pouches or sacs, such as the bladder or gallbladder in the human body. These organs typically have an elastic or expandable structure that allows them to store and release substances as needed.
Alveoli also known as air sacs.