1):- The ears are the auditory sensory organs,also involved in maintaining equilibrium of the body
2):- The ear is composed of three divisions namely the outer ear , middle ear and internal ear .
3):-  the external ear consists of the pinna and external auditory meatus (canal). The pinna is for collection of sound waves coming from your environment and external auditory Canal is the circular tube leading inside up to the ear drum of tympanic members
4):- The tympanic members or years drum is formed of connective tissue having outer skin cover and inner mucus members