Ear

Title: Ear

The ear is the organ of hearing and balance in humans and animals. There are three parts of the ear: outer, middle and inner.

The outer ear consists of the pinna and the external auditory canal. The auricle is a cartilaginous plate covered with skin. The external auditory canal is covered with skin, which has hair and sebaceous glands.

The middle ear includes the eardrum and the tympanic cavity. The tympanic cavity contains three auditory ossicles - the malleus, the incus and the stapes. The middle ear communicates with the nasopharynx through the auditory tube.

The inner ear contains the cochlea, the organ of hearing, as well as the semicircular canals and saccules, the organ of balance. The cochlea contains sound-sensitive hair cells.

The pinna, external auditory canal, and middle ear conduct sound vibrations to the inner ear. The cochlea converts sound vibrations into nerve impulses, which travel along the auditory nerve to the brain.

Thus, the ear is the most important sensory organ for hearing and balance. Damage to various parts of the ear leads to hearing loss and other disorders. Therefore, it is necessary to treat your ear with care and consult a doctor immediately if there are any problems.

According to the Merriam-Webster dictionary, the word "ear" comes from the Old English word aurijs. The etymology of this word indicates that during the ancient period the ear had a direct relationship with human anatomy. For example, in English there is a verb “hear” meaning “to hear”, and this is all because “ear” is the root of the verb, which is also the root of the word “ear”, which in turn is the root of the word “aur”.

Thus, we see the meaning of the word associated with ears and hearing - it has the closest, most direct and comprehensive relationship to this