Otic vesicle
Otic Vesicle
The Otic Vesicle (pronunciation: /ˈoʊtɪk ˈvɛsɪkəl/), also known as the auditory vesicle, is an embryonic structure which gives rise to the structures of the inner ear.
Etymology
The term "otic" is derived from the Greek word "otikos", meaning "pertaining to the ear", and "vesicle" comes from the Latin "vesicula", meaning "small bladder" or "sac".
Formation
The otic vesicle forms during the embryonic development from the ectoderm, the outermost layer of an embryo. The formation of the otic vesicle is induced by signals from the underlying mesoderm and adjacent neural tube.
Development
The otic vesicle differentiates to form the structures of the inner ear, including the cochlea, which is involved in hearing, and the vestibular system, which is involved in balance.
Related Terms
- Ectoderm: The outermost layer of cells or tissue of an embryo in early development.
- Mesoderm: The middle layer of an embryo in early development, between the endoderm and ectoderm.
- Neural Tube: The precursor to the central nervous system in the embryo, which develops into the brain and spinal cord.
- Cochlea: The spiral cavity of the inner ear containing the organ of Corti, which produces nerve impulses in response to sound vibrations.
- Vestibular System: The system in the body that is responsible for maintaining balance, posture, and the body's orientation in space.
External links
- Medical encyclopedia article on Otic vesicle
- Wikipedia's article - Otic vesicle
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski