Home > Skeletal System > Bones of the Chest and Upper Back > Xiphoid Process of Sternum. The xiphoid process is the smallest and most inferior region of the sternum, or breastbone. At birth, it is a thin, roughly triangular region of cartilage that slowly ossifies into a bone and fuses with the body of the sternum.
Some of the most prevalent diseases known to cause deafness include meningitis, Meniere'mÃ©niÃ¨re S, Disease Alport, syndrome, rubella and. Mumps there are two main causes of, deafness these are congenital and. acquired
Otosclerosis is one of the most common causes of progressive deafness in young adults. 'Otosclerosis is caused by an abnormal growth of bone in the ears, which causes hearing loss. In most cases, a surgical operation will restore the hearing. Otosclerosis has to do with the three small bones in the middle ear, more specifically the stapes. A part of the bone will grow abnormally and this bone growth will prevent the stapes from vibrating normally in response to sound.