Category: Ea-Em

The tympanic membrane of the ear, or tympanum. The eardrum separates the middle ear from the external ear.

A minor anomaly involving an ear situated down below its normal location. The ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). .

A thermometer that registers body temperature via the ear canal. The ear thermometer was invented in 1964 by Dr. Theodor H. Benzinger. Dr. Benzinger worked from 1947 to 1970 at the Naval Medical Research Institute in Bethesda, Maryland where he studied temperature regulation and helped create the field of biothermodynamics. He created the ear thermometer while looking for a…

When ear wax accumulates enough, it may block the ear canal (and hearing). A health care professional may have to wash it out, vacuum it, or remove it with special instruments. Alternatively, your physician may prescribe ear drops that are designed to soften the wax.

The hearing organ. There are three sections of the ear, according to the anatomy textbooks. They are the outer ear (the part we see along the sides of our head behind the temples), the middle ear, and the inner ear. But in terms of function, the ear has four parts: those three and the brain. Hearing thus…

Escherichia coli is part of the normal human intestinal flora. E. coli has been studied intensively in genetics and molecular and cell biology because of its availability, its small genome size, its normal lack of pathogenicity (disease-causing ability), and its ease of growth in the laboratory. Most strains of E. coli are quite harmless. However, some strains of E. coli are capable of causing disease,…