The Eastern Standard Time, abbreviated EST, refers to the standard time on the 5th time zone west of the Greenwich Meridian. This time zone is reckoned 75 degrees west of the Greenwich and it encompasses most of the eastern parts of the United States. It is also the timezone used in Canada, the Caribbean, and in a few countries of South America.
What is a Food Bolus? A food bolus is a small, round mass of food that is formed in the mouth during the early phase of digestion. A food bolus is formed when a piece of food is chewed, lubricated with saliva, mixed with enzymes and formed into a soft, lubricated and cohesive mass. The bolus is held in the mouth, or oral cavity, until the process of swallowing begins.
â¢ Premolars (8 total): Teeth between the canines and molars. â¢ Molars (8 total): Flat teeth in the rear of the mouth, best at grinding food. â¢ Wisdom teeth or third molars (4 total): These teeth erupt at around age 18, but are often surgically removed to prevent displacement of other teeth.ll rights reserved. The teeth are the hardest substances in the human body. Besides being essential for chewing, the teeth play an important role in speech. Parts of the teeth include: â¢ Enamel: The hardest, white outer part of the tooth. Enamel is mostly made of calcium phosphate, a rock-hard mineral.