The external ear is formed by the pinna and the external auditory canal that receives sounds and transmits them to the middle ear via the eardrum. The tympanic membrane is thin and semi-transparent. In general, the tympanic membrane is called the eardrum. The external auditory canal channels the sound to the tympanic membrane. Pinna is cartilaginous and it directs the sound wave towards the external auditory canal. ![]() The outer ear or external ear is consisting of the pinna and the ear lobe. The human ear is divided into three sections, those are the outer ear, the middle ear, and the inner ear. Each layer of ear derives from different germinal layers, inner ear from Ectoderm, middle ear from Endoderm, and outer ear from Mesenchyme. ![]() In the fetus, the ear derives from the first pharyngeal pouch. Pinna is made up of elastic yellow cartilages and it is covered with integument and tendons and muscles attach it with surrounding parts. Ears are located on both sides of the brain within the temporal bones of the skull. The part of the ear that is visible from outside is called Pinna. The ear is the part of our Auditory system. In earth, most mammals have an external ear. The ears are not just the hearing organ but are a complex system of parts that not only allows humans to hear, but also makes it possible for humans to walk or function the whole body system. Ear functions the conversion of sound waves into electrochemical impulses and maintains the sense of balance. The human ear is the organ of hearing and equilibrium that detects and analyzes sound by transduction.
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