Uncinate process

Uncinate process

Uncinate process can refer to:
* Uncinate process of ethmoid bone
* Uncinate process of cervical vertebra or uncinate process of first thoracic vertebra: An Uncinate process is a part of a spinal vertebra. It is a hook shaped process on the lateral borders (side edges) of the superior (top) surface of the vertebral bodies of the third to the sixth cervical vertebrae. This bony part prevents a vertebra from sliding backwards off the vertebra below it (i.e. it prevents posterior linear translation movements of the vertebral bodies) and limits lateral flexion.
* Uncinate process of pancreas
* Uncinate processes of ribs, which can be separate bones or projections from ribs. They are found in birds, some dinosaurs (particularly some coelurosaurian theropods), and sphenodonts (tuataras). An uncinate process on a rib overlaps the rib posterior to it, providing bracing to the rib cage. Uncinate processes found in dinosaur fossils were used to relate how some theropods breathed to that of penguins. [http://news.bbc.co.uk/2/hi/science/nature/7081166.stm]


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Look at other dictionaries:

  • uncinate process — n a hooklike body part: as a) an irregular downwardly and backwardly directed process of each lateral mass of the ethmoid bone that articulates with the inferior nasal conchae b) a bony upward projection arising from each side of the upper… …   Medical dictionary

  • Uncinate process of pancreas — Infobox Anatomy Name = PAGENAME Latin = processus uncinatus pancreatis GraySubject = 251 GrayPage = 1200 Caption = 1: Head of pancreas 2: Uncinate process of pancreas 3: Pancreatic notch 4: Body of pancreas 5: Anterior surface of pancreas 6:… …   Wikipedia

  • Uncinate process of ethmoid bone — Infobox Bone Name = Uncinate process of ethmoid bone Latin = processus uncinatus ossis ethmoidalis GraySubject = 36 GrayPage = 155 Caption = Lateral wall of nasal cavity, showing ethmoid bone in position.(Unciate process of ethmoid labeled at… …   Wikipedia

  • uncinate process — noun 1. : a backwardly directed and often somewhat curved process on many ribs of birds that is in such a position that it crosses or overlaps one or more other ribs and serves to stiffen the walls of the thorax 2. : an irregular downwardly and… …   Useful english dictionary

  • uncinate process — Ornith. a curved, bony process on certain ribs of birds that projects backward and overlaps the succeeding rib, serving to strengthen the thorax. [1880 85] * * * …   Universalium

  • uncinate process of cervical vertebra — uncus corporis vertebrae cervicalis …   Medical dictionary

  • uncinate process of ethmoid bone — processus uncinatus ossis ethmoidalis …   Medical dictionary

  • uncinate process of first thoracic vertebra — uncus corporis vertebrae thoracicae primae …   Medical dictionary

  • uncinate process of pancreas — processus uncinatus pancreatis …   Medical dictionary

  • Uncinate — Un ci*nate, a. [L. uncinatus, from uncinus a hook, from uncus a hook.] Hooked; bent at the tip in the form of a hook; as, an uncinate process. [1913 Webster] …   The Collaborative International Dictionary of English

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