A brief description of the human ear along with a well-labelled diagram is given below for reference. Pinna/auricle is the outermost section of the ear. The external auditory canal links the exterior ear to the inner or the middle ear.
Your doctor’s initial evaluation will usually include: Examination of your ear canal with a lighted instrument (otoscope). Your ear canal may appear red, swollen and scaly. Flakes of skin and other debris may be present in the ear canal.
Under the skin the outer one third of the canal is cartilage and inner two thirds is bone. The ear drum is about the size of a dime and is the same size in the new born baby as in the adult. The medical term for the ear drum is the tympanic membrane. The ear drum is a transparent gray membrane.