When food enters from esophagus, one of the functions of the stomach is to produce and release enzymes. These enzymes help in the digestive mechanism. The pH here is two (2) that provides the optimum acidity environment for the maximum activity of pepsin, a protein-digesting enzyme.
The clavichord is a European stringed keyboard instrument known from the late Medieval, through the Renaissance, Baroque and Classical eras. Historically, it was mostly used as a practice instrument and as an aid to composition, not being loud enough for larger performances. The clavichord produces sound by striking brass or iron strings with small metal blades called tangents. Vibrations are transmitted through the bridge(s) to the soundboard.
clavÂ·iÂ·cle. A doubly curved long bone that forms part of the shoulder girdle. Its medial end articulates with the manubrium sterni at the sternoclavicular joint; its lateral end with the acromion of the scapula at the acromioclavicular joint. Synonym(s): clavicula [TA] , collar bone.