The oxygen exchange in the lungs takes place across the membranes of small balloon-like structures called alveoli attached to the branches of the bronchial passages. These alveoli inflate and deflate with inhalation and exhalation. The behavior of the alveoli is largely dictated by LaPlace's law and surface tension.
John Adams and his wife Abigail had six children. His oldest daughter, Abigail, was born in 1765, and future president John Quincy Adams was born in 1767. A second daughter, Susanna, was born in 1768, followed by Charles in 1770, Thomas Boylston in 1772 and Elizabeth in 1777. Continue Reading.
Photo Credit: Library of Congress. President John Tyler had the most children of any president â 15 children with two wives. He also still has two living grandchildren! Born in 1790, Tyler was the 10th President of the United States, serving from 1841-1845. He took office after the sudden death of President William Henry Harrison and was nicknamed âHis Accidency.â.