Squamosal
- Squamosal
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Crâne de Dromaesaurus. le squamosal est en jaune pâle.
Le squamosal est un os du crâne des vertébrés supérieurs. Il est en contact en avant avec l'os postorbitaire, au dessus avec l'os pariétal, en arrière, le carré et le processus ptérygoïde, en avant et en dessous, l'os jugal et ventralement par l'os quadratojugal.
Chez les mammifères, il s'articule avec la mandibule mais chez de nombreux mammifères, comme les humains, il fusionne avec l'os pétreux et le tympanal pour former l'os temporal.
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Squamosal — Squa*mo sal (skw[.a]*m[=o] sal), a. (Anat.) (a) Scalelike; squamous; as, the squamosal bone. (b) Of or pertaining to the squamosal bone. n. The squamous part of the temporal bone, or a bone corresponding to it, in many of the lower vertebrates.… … The Collaborative International Dictionary of English
squamosal — [skwə mō′səl] adj. 1. SQUAMOUS 2. Zool. designating or of a bone in the skull of lower vertebrates analogous to the squamous portion of the temporal bone in humans n. a squamosal bone … English World dictionary
Squamosal — The squamosal is a bone of the head of higher vertebrates. It is the principal component of the cheek region in the skull, lying below the temporal series and otic notch and bounded anteriorly by postorbital. Posteriorly, the squamosal… … Wikipedia
squamosal — Relating especially to the squamous part of the temporal bone. * * * squa·mo·sal skwā mō səl, skwə n a squamosal bone squamosal adj 1) SQUAMOUS (2) 2) of, relating to, or being a bone in the skull … Medical dictionary
squamosal — I. noun Date: 1848 a squamosal bone II. adjective Date: circa 1852 1. squamous 2. of, relating to, or being a bone of the skull of many vertebrates corresponding to the squamous portion of the temporal bone of most mammals including humans … New Collegiate Dictionary
squamosal — /skweuh moh seuhl/, adj. 1. Anat. of or pertaining to the thin, scalelike portion of the temporal bone that is situated on the side of the skull above and behind the ear. 2. Zool. pertaining to a corresponding bone in other vertebrates. 3.… … Universalium
squamosal — /skwəˈmoʊsəl/ (say skwuh mohsuhl) adjective 1. Anatomy relating to the thin scale like bone (an element of the temporal bone) in the side of the skull above and behind the ear. 2. Zoology relating to a corresponding bone in other vertebrates. 3.… …
squamosal — I. (ˈ)skwā|mōsəl, skwəˈm , ōzəl adjective Etymology: Latin squamosus squamous + English al : scalelike: a. : squamous b. [New Latin … Useful english dictionary
Squamosal suture — Infobox Anatomy Name = PAGENAME Latin = sutura squamosa cranii GraySubject = 46 GrayPage = 183 Caption = Side view of the skull. (Squamosal suture visible at center, right above temporal bone, which is colored pink in the diagram). Caption2 =… … Wikipedia
squamosal — a paired endochondral bone found in Latimeria but incorporated in the preopercle of modern Actinopterygii. Also a term misapplied to the pterotic in fishes … Dictionary of ichthyology
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