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
The nonsyndromic type of hereditary deafness is further classified into dominant and recessive subtypes. Only about 20% of nonsyndromic cases are dominant. The case is dominant when one of the parents carries the gene that caused hearing impairment.f deafness is due to problem in the inner ear, then it is called sensorineural hearing loss. Hearing impairment can also be classified according to when it happened. If the deafness in children happened before the development of language skills, then it is called prelingual deafness.