Human ear | Structure, Function, & Parts | Britannica
网页2024年9月10日 · Human ear, organ of hearing and equilibrium that detects and analyzes sound by transduction and maintains the sense of balance. Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear. Learn about the anatomy and physiology of the human ear in this article.
Human ear - Anatomy, Hearing, Balance | Britannica
网页2024年9月10日 · Human ear - Anatomy, Hearing, Balance: The most-striking differences between the human ear and the ears of other mammals are in the structure of the outermost part, the auricle. In humans the auricle is an almost rudimentary, usually immobile shell that lies close to the side of the head.
Inner ear | Definition, Anatomy, Balance, & Facts | Britannica
网页Inner ear, part of the ear that contains organs of the senses of hearing and equilibrium. The bony labyrinth, a cavity in the temporal bone, is divided into three sections: the vestibule, the semicircular canals, and the cochlea.
Human ear - Hearing, Anatomy, Physiology | Britannica
网页2024年9月10日 · Human ear - Hearing, Anatomy, Physiology: Hearing is the process by which the ear transforms sound vibrations in the external environment into nerve impulses that are conveyed to the brain, where they are interpreted as sounds.
The anatomy of the ear | Britannica - Encyclopedia Britannica
网页Structures of the human ear. The cartilaginous auricle and the auditory canal of the outer ear direct sound waves to the middle ear. The eardrum, stretched across the end of the canal, vibrates as sound waves reach it.
Vestibular system | Definition, Anatomy, & Function | Britannica
网页Vestibular system, apparatus of the inner ear involved in balance. It consists of two structures of the bony labyrinth of the inner ear, the vestibule and the semicircular canals, and the structures of the membranous labyrinth contained within them.
Human ear - Endolymph, Perilymph, Hearing | Britannica
网页2024年9月10日 · Human ear - Endolymph, Perilymph, Hearing: The perilymph, which fills the space within the bony labyrinth surrounding the membranous labyrinth, is similar, but not identical, in composition to other extracellular fluids of the body, such as cerebrospinal fluid.
Human ear - Balance, Vestibular, Physiology | Britannica
网页2024年9月10日 · There are two sets of end organs in the inner ear, or labyrinth: the semicircular canals, which respond to rotational movements (angular acceleration); and the utricle and saccule within the vestibule, which respond to changes in the position of the head with respect to gravity (linear acceleration).
Ear bone | Ossicles, Hearing & Balance | Britannica
网页Ear bone, any of the three tiny bones in the middle ear of all mammals. These are the malleus, or hammer, the incus, or anvil, and the stapes, or stirrup. Together they form a short chain that crosses the middle ear and transmits vibrations caused by sound waves from the eardrum membrane to the.
Auricle | Outer Ear, Hearing & Soundwaves | Britannica
网页Auricle, in human anatomy, the visible portion of the external ear, and the point of difference between the human ear and that of other mammals. The auricle in humans is almost rudimentary and generally immobile and lies close to the side of the head. It is composed of a thin plate of yellow.