The anchor is often found in burial places of the early Roman Christians. Other substitute symbols in use were the trident and a decussate cross, which looks like the Greek letter chi. The wide-spread symbol for the Crucifixion in those days was a lamb at the foot of the anchor: the lamb representing Christ, and the anchor the cross.
The human ear is one of the more remarkable parts of the human body, not only because of the beauty and unlikelihood of its structure, but also because of its remarkable sensitivity to sounds. From an anatomical point of view, the ear is conventionally and convenÂ­iently divided into three parts: the outer, the middle and the inner ears.
The outer ear refers to the ear canal that is approximately one inch in length and ends at the level of the eardrum (known as the tympanic membrane). The eardrum identifies the beginning of the middle ear, which is a cavity in the bone of the skull that houses the three bones of hearing (known as ossicles).