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.
Within a sentence, commas may be used to set off words, phrases, and clauses that are not essential to the sentence. For example: I drew up a sales plan, primarily for the West Coast, that requires new contracts in Los Angeles. Your plan, therefore, is without regard to the East Coast sales representatives.hose little commas and semicolons are key to stringing words and concepts together so they make sense. It sometimes isn't easy to figure out which one to use where, so I put together a brief guide to cover letter punctuation. In this post I focus on commas and semicolons. Here you go...