This is a ringing that sets in after excessive noise exposure, such as in a rock concert (being too near the speakers) or the explosion of a firecracker. This excessive noise can cause injury to the ear, causing the ringing. The tinnitus will usually clear up on its own, and will last anywhere from minutes to hours.
Mechanical digestion is the actual physical break down of food into smaller pieces. One example of this is mastication (chewing) which occurs in the mouth by the teeth, which act to cut and grind food into smaller pieces. This makes them easier to later digest as it increases the SA of the food molecules.
Confidence votes 38. Most of the digestion occurs in the stomach and small intestine, however some components are harder to digest and that may occur in the large intestine or with help from the gallbladders bile. Physical digestion occurs in the mouth, by a process called chewing, rendering bites of food even smaller.Chemical digestion begins in the mouth (saliva contains enzymes that begin the chemical breakdown process) and ends in the intestines.)    Mechanical digestion does occur in the stomach along with chemical digestion. The stomach squeezes the chyme and that is considered to be mechanical digestion. 8 people found this useful. 1  The Five Major Parts of the Brain At its most basic, the brain controls the body.