Primary otalgia is caused by auricular and periauricular disease, while referred otalgia is caused by disease originating from remote structures. Referred otalgia is common because of the multiple cranial nerves and branches of the cervical plexus that supply sensory innervation to both the ear and other structures of the head and neck. The sensory innervation of the ear is mediated by the fifth, seventh, ninth, and tenth cranial nerves as well as the cervical plexus, with much overlapping and variability. Common causes of primary and referred otalgia are listed in Table.2.3.1-1,.

Dealing With Back Pain

Dealing With Back Pain

Deal With Your Pain, Lead A Wonderful Life An Live Like A 'Normal' Person. Before I really start telling you anything about me or finding out anything about you, I want you to know that I sympathize with you. Not only is it one of the most painful experiences to have backpain. Not only is it the number one excuse for employees not coming into work. But perhaps just as significantly, it is something that I suffered from for years.

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