The external ear

The outer ear and ear canal are part of the external ear. The ear cartilage is actually a wayward drive-coated skin. Earcups are very personal and can often vary considerably in their shape and size. Because our ears are not separately move, they play only a minor role in directional hearing: only the front-back sound different, they can help to determine.

 

An overview of the external ear, middle ear and inner ear:

 

 

The outer part of the ear also consists of cartilage, while the inner portion is bony. Both with skin. The ear canal is about 2.5 cm long and has an S-shape, slightly upwards. In the outer part of the ear canal are a number of hairs and glands that earwax (cerumen) separate. In the wax remains dust and dirt adhere to the hairs gradually being brought out.