Ectotympanic region
WebThe periotic, ectotympanic, and basioccipital bones and the cochlear space, semicircular canals, carotid canal, and the facial canal were digitized in Amira, allow- ing three-dimensional (3D) reconstructions to be generated for those structures. WebDec 2, 2008 · The malleus, incus, stapes, and styloid process are deformed. agp, angular process; at, ala temporalis; cdp, condylar process; crp, coronoid process; dnt, dentary; etm, ectotympanic; fmx, frontal process of maxilla; gn, gonial; hy, hyoid; in, incus; jg, jugal; ma, malleus; mx, maxilla; pmx, premaxilla; sp, styloid process; sq, squamosal; st, …
Ectotympanic region
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WebMar 1, 2015 · the ectotympanic region; (8) atypical attachment of the main tympanic septum to the copula of the tym panic ring; (9) presence of additional septa in the tym WebMar 15, 2007 · The tympanic membrane suspended by the ectotympanic ring and malleus manubrium would be re-oriented more mediodorsally (see red arrows in b-1 and b-2 of Fig. 3b), similar to the ectotympanic’s ...
WebOct 25, 2024 · A Micro-CT reconstruction of the skull of Atelerix albiventris, showing the position and size of the middle ear region. The ectotympanic bone (orange) is loosely attached to the skull. B Close-up of the left ear region, ventrolateral view. Within the middle ear cavity, the internal carotid artery can be seen to divide into a stapedial branch ... WebOct 25, 2024 · A Micro-CT reconstruction of the skull of Atelerix albiventris, showing the position and size of the middle ear region. The ectotympanic bone (orange) is loosely …
WebMar 1, 2012 · The ear region of the aardvark, Orycteropus afer (Pallas, 1766), including the auditory ossicles, is described and illustrated in detail based on five museum specimens … WebDec 22, 2016 · The homologies between the malleus, incus, and ectotympanic bones of the mammalian middle ear and the articular, quadrate, and angular bones of the tetrapod palatoquadrate, respectively, are well-established by embryonic evidence.
WebJan 28, 2010 · The basioccipital is tabular, and contacts the ectotympanic only ventrally towards the rostral end of the skull. The periotic is ventrally expanded and abuts the basioccipital. The auditory bulla articulates with the external face of the periotic, and a small region articulates with the ventrolateral margin of the basioccipital.
WebSep 15, 2024 · Ectotympanic bone morphology is commonly used as a large-scale phylogenetic indicator across primates. ... Thus, the ectotympanic tube's length may be … dj珍珠WebSep 15, 2024 · Ectotympanic bone morphology is commonly used as a large-scale phylogenetic indicator across primates. Less well-understood is the intraspecies variation … dj玩具WebApr 1, 2016 · The ectotympanic portion of the ear is often used as a phylogenetic marker among primates. However, the factors influencing growth and adult structure of this region are not well studied. The ectotympanic tube is a C- or U- shaped tube that is fused to the petrosal part of the temporal bone. dj狗峰WebThe ectotympanic bones of the two fossil species are shown to be abnormally short for catarrhine taxa, more similar to the platyrrhine condition. There is much more diversity in … dj生存WebMar 13, 2024 · The higher carnivoran taxa significantly differ in the morphology of the auditory bulla, but little is known about its non-ectotympanic elements and their … dj玩WebApr 1, 2013 · The fetal stage of Equus sp. has developed neither an entotympanic nor a cartilage of the auditory tube yet. The ventral aspect of the bulla tympanica of a late fetal … dj玩全手册WebAug 15, 2024 · The elements of the auditory region are well preserved (region of the petrosal bone, the mastoid process and ectotympanic bone on the left side of the skull). The synchrotron tomography shows that the specimen is well cleaned of the matrix, and only a small amount of weakly cemented fine-grained sand is found in the folds of the surface … dj用 針