Osseous ampullae

Osseous ampullae
Inner ear illustration showing semicircular canal, hair cells, ampulla, cupula, vestibular nerve, & fluid
The membranous labyrinth.
Latin	ampullae osseae
Gray's	subject #232 1049

The bony semicircular canals are three in number, superior, posterior, and lateral, and are situated above and behind the vestibule. They are unequal in length, compressed from side to side, and each describes the greater part of a circle. Each measures about 0.8 mm. in diameter, and presents a dilatation at one end, called the osseous ampulla, which measures more than twice the diameter of the tube. They open into the vestibule by five orifices, one of the apertures being common to two of the canals.

External links

• http://www.bio.psu.edu/people/faculty/strauss/anatomy/nerv/innerear2.htm

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

This anatomy article is a stub. You can help Wikipedia by expanding it.v · Categories: Vestibular system Anatomy stubs Wikimedia Foundation. 2010. Игры ⚽ Нужна курсовая? Lara FS Academy Clyde E. Palmer Look at other dictionaries: Ampulla — An Ampulla (plural ampullae ) was, in Ancient Rome, a small nearly globular flask or bottle, with two handles (OED). The word is used of these in archaeology, and of later, often handle less flasks for holy water or holy oil in the Middle Ages,… …   Wikipedia ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium ampulla — A saccular dilation of a canal or duct. [L. a two handled bottle] biliaropancreatic a. hepatopancreatic a.. a. biliaropancreatica hepatopancreatic a.. bony ampullae of semicircular canals [TA] a circumscribed dilation of one extremity of each of… …   Medical dictionary part — A portion. SYN: pars [TA]. abdominal p. of aorta SYN: abdominal aorta. abdominal p. of esophagus [TA] the portion of the esophagus from where it passes through the diaphragm to the stomach. See …   Medical dictionary Cochlea — Cross section of the cochlea …   Wikipedia Vestibule of the ear — Vestibulum and vestibule redirect here. For other uses, see Vestibule (disambiguation). Vestibule of the ear Chain of ossicles and their ligaments, seen from the front in a vertical, transverse section of the tympanum. (Vestibule visible at… …   Wikipedia Inner ear — The cochlea and vestibule, viewed from above …   Wikipedia Oval window — View of the inner wall of the tympanum. (label is fen. oval. black circle near top.) …   Wikipedia Membranous labyrinth — The membranous labyrinth. Latin labyrinthus membranaceus Gray s …   Wikipedia Modiolus (cochlea) — Interior of right osseous labyrinth. (Modiolus not labeled, but is represented at the axis of the spiral of the cochlea at the right.) Gray s subj …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”