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.
An eardrum perforation is a hole or opening in an otherwise intact eardrum. The size of the perforation can vary from a small pinpoint opening to a loss of the entire eardrum. How does a perforation of the eardrum occur? There are many ways an eardrum perforation can occur. An infection behind the eardrum in the middle ear may cause a rupture of the eardrum. Trauma to the ear may result from an object entering the ear canal and puncturing the eardrum. A traumatic blow to the ear with a cupped hand can rupture the eardrum. Hot welding slag can burn a hole through the eardrum.