Pulmonary Surfactant. The force of surface tension in the lungs is so great that without something to reduce the surface tension, the airways would collapse after exhalation, making re-inflation during inhalation much more difficult and less effective. Collapse of the lungs is called alectasis.
Rules for Using Semicolons. A semicolon is most commonly used to link (in a single sentence) two independent clauses that are closely related in thought. When a semicolon is used to join two or more ideas (parts) in a sentence, those ideas are then given equal position or rank. Some people write with a word processor; others write with a pen or pencil. Use a semicolon between two independent clauses that are connected by conjunctive adverbs or transitional phrases.
The semicolon or semi-colon (;) is a punctuation mark that separates major sentence elements. A semicolon can be used between two closely related independent clauses, provided they are not already joined by a coordinating conjunction.Semicolons can also be used in place of commas to separate items in a list, particularly when the elements of that list contain commas.The first printed semicolon was the work of the Italian printer Aldus Manutius the Elder in 1494.emicolons can also be used in place of commas to separate items in a list, particularly when the elements of that list contain commas. The first printed semicolon was the work of the Italian printer Aldus Manutius the Elder in 1494.