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4 lut 2022 · The external ear (EE) is anatomically and functionally divided into the cartilaginous auricle, or pinna, and the external auditory canal (EAC). The auricle captures, concentrates, and amplifies sound waves, directing them into the EAC.
7 sty 2021 · The pinna or auricle directs sound waves into the external auditory Meatus (EAM), which then funnels sound waves toward the ear drum or tympanic membrane (TM), causing it to displace and move the ossicular chain of bones in the air-filled middle ear.
16 sie 2020 · This article will focus on the anatomy of the external ear – its structure, neurovascular supply and clinical correlations. The external ear can be divided functionally and structurally into two parts; the auricle (or pinna), and the external acoustic meatus – which ends at the tympanic membrane.
24 lip 2023 · The external ear is the visible part of the hearing apparatus. It is comprised of the auricle (pinna) and external auditory canal, including the lateral surface of the tympanic membrane. Together with the tympanic membrane and the middle ear, the pinna serves to amplify sound.
20 lip 2024 · The external ear (or outer ear) comprises the auricle (or pinna), the external auditory meatus, and the tympanic membrane ("eardrum"). The auricle concentrates and amplifies sound waves and funnels them through the outer acoustic pore into the external auditory meatus to the tympanic membrane.
Directly anterior to the external auditory meatus is a cartilaginous projection called the tragus. Opposing the tragus is a prominence at the inferior extent of the antihelix called the antitragus. The intertragal notch separates the two.
1 sty 2022 · The delicate yet definitive deflections of the pinna (wing/fin) of the external ear contribute to the collection of sound. The external acoustic meatus is responsible for the transmission of sounds to the tympanic membrane, which in turn separates the external ear from the middle ear.
