Cranio-auricular angle in the normal range is not a real elf ear, because its ear shape may not be like an elf ear. It is called elvish ear because it is shaped like elvish ear, sharp and slender, and the growth direction of the whole auricle is not round but slightly inclined.
Structure and nomenclature of ears
The ear is called the window cage in ancient times, the six books in Hejian are called the listener, and the epidemic jingwei is called the dragon onion. Ear is an auditory organ, where the qi of clearing yang passes, and it belongs to one of clearing orifices. Modern found that it has a balance function.
People who say that the window cage is guarded by the spiritual pivot have ears. The window cage mentioned in A-B Sutra is the upper and lower veins in front of the ear, and it is also pressed by hand. It seems that the hearing palace protrudes from both sides of the head and is shaped like a trumpet, so it is called auricle. The periphery of the auricle is called the helix. In ancient times, when the upper and lower incisors in front of the ears stood out like screens, it was called shielding. The drooping part of the auricle is called the earlobe, which is called the ear bead in ancient times.
The hole leading to the ear canal is called the ear canal, and it is called the external auditory canal in modern times. The tympanic membrane located in the deep part of the external auditory canal is called the capsule according to the theory of blood syndrome. There are many acupoints on the auricle, which are called auricular points. As far as the anatomical structure of the ear is concerned, most of the ancient people talked about the outer ear, and rarely involved the middle ear and the inner ear.