👉 "Interalveolar" is a medical term that refers to the process of the development and growth of the alveoli in the lungs. The alveoli are tiny air sacs located at the bottom of each lung, which help to move oxygen from the blood into the bloodstream throughout the body. The interalveolar process begins during fetal development when the mother's placenta transfers nutrients and oxygen to the developing fetus. This nutrient-rich environment then stimulates the growth of the alveoli