Epinephrine is the a hormone and neurotransmiter. It is produced by the adrenal gland an is a fight-or-flight catecholamine.. So is norepinephrine. In biochemistry, the prefix nor means that norepinephrine is an analog of epinephrine. They function quite differently in the body. epinephrine is most commonly thought of in terms of t effect on the sympathetic nervous system-increasing heart rate, increasing blood pressure, hyper alertness, etc.
Call a doctor immediately if you suspect you or someone you know has a ruptured eardrum and any of the following occur: 1  An uncontrolled spinning sensation. 2  Difficulty walking. 3  An abrupt change in hearing.  A change in the ability to taste 1  foods. You accidentally put your ear under water.
Fluid behind the eardrum is called serous otitis media. It can create pain and hearing difficulty similar to a middle ear infection. The eardrum can rupture (break) in severe cases of ear barotrauma, causing bleeding or leaking of fluid from the ear. A ruptured eardrum can result in hearing loss. In severe cases, it is possible for the pressure to create a leak between the deepest structures of the ear (the fluid-filled bony canals called the cochlea and semicircular canals) and the inner ear space.