👉 The term "ecthmoid" is a medical condition that describes the structure of the inner ear, which includes the eithmoids (the two small bones on each side of the outer ear). The eithmoids are located in the front part of the skull, just behind the ear. They help to sense sound by allowing the brain to detect and process vibrations in the air around it. In general, an ecthmoid is a type of bone that is found at the back of