The term "otic vesicle" refers to a small sac-like structure found in the inner ear of vertebrates. The spelling of this word is influenced by its pronunciation, which is represented in IPA phonetic transcription as /oʊtɪk ˈvɛsəkəl/. The first syllable "oti-" is pronounced with a long "o" sound, followed by a "t" and an "i" that are pronounced separately. The second syllable "-c ves-" is spelled with a "v" instead of a "f" to match the pronunciation of the voiced consonant. Lastly, the stress falls on the second syllable "-sicle" which is pronounced with a short "i" sound followed by the consonants "s" and "k" without a pronounced "l" sound.
The term "otic vesicle" refers to a structure found in the developing embryo of vertebrates, particularly in aquatic species. It is a hollow pouch that arises from the side of the embryonic brain, specifically from the otic placode. The otic vesicle ultimately gives rise to the inner ear, which is responsible for hearing and balance.
The otic vesicle undergoes a complex series of morphological changes and differentiations to form the different components of the inner ear. It first differentiates into the utricle and saccule, which are responsible for detecting linear acceleration and gravity, respectively. Later on, it further differentiates into the semicircular canals, which detect rotational movements.
The development of the otic vesicle is tightly regulated by various signaling molecules and genes that control its growth and differentiation. Any disruptions or abnormalities in this process can result in congenital hearing and balance disorders.
In summary, the otic vesicle is an embryonic structure that gives rise to the inner ear in vertebrates. It plays a crucial role in the development of hearing and balance, and any disturbances in its formation can lead to a variety of auditory and vestibular abnormalities.
Acoustic v.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The etymology of the term "otic vesicle" originates from Greek and Latin roots.
The word "otic" comes from the Greek word "otos", which means "ear". It is derived from the Greek root "ous", meaning "ear".
The term "vesicle" comes from the Latin word "vesicula", which means "small bladder" or "little bag". It is derived from the Latin noun "vesica", meaning "bladder".
When combined, "otic vesicle" refers to a small bladder-like structure located in the developing embryo that gives rise to parts of the ear.