External Auditory Canal

External Auditory Canal EXTERNAL ACOUSTIC CANAL Length of external auditory canal is 24 mm. Outer part – directed upwards, backwards and medially Inner part – directed downwards, forwards and medially To see the tympanic membrane – pinna has to be pulled – upwards, backwards and laterally Cartilaginous part Outer one-third (8mm) Two deficiencies – fissures […]