The tip of the probe has a pressure transducer that changes the pressure in the external ear canal from negative, through atmospheric pressure, to positive pressure. While the pressure is changing, a sound transmitter sends a sound wave to the tympanic membrane.hysics of the Tympanogram. If the middle ear space is filled with fluid, most of the sound is reflected back to the probe from the stiff tympanic membrane. If the middle ear space is filled with air, and the ossicles are intact, energy is absorbed by the tympanic membrane, ossicles, and inner ear structures.
FOODS THAT FIGHT CANCERâ¢. December. No single food or food component can protect you against cancer by itself. But strong evidence does show that a diet filled with a variety of plant foods such as vegetables, fruits, whole grains and beans helps lower risk for many cancers.
2. Prevent DNA Damage. Tomatoes are high in important antioxidants such as vitamin C and Vitamin A. These vitamins work to fend of DNA damage from free radicals. Consequently, tomatoes may help to ward off age related diseases such as atherosclerosis and diabetes.ere are some of the health benefits of tomatoes. 1. Ward off Cancer. Numerous studies have concluded that the more tomatoes people eat the lower their risks of certain cancers, especially lung, stomach and prostate cancers.