Archive image from page 1067 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana03todd Year: 1847 Portion of of Lophhis piscatorius, showing the ligamenfous attachment of the teeth. a, a, a, anterior teeth; b, b, b, posterior teeth in their erect position; cyone of these teeth laid flat towards the interior of the mouth, the dotted lines indicating its condition when erect. (After Owen.) a stimulus and developes a process cor- responding in size and form with the so- lidified basis of the tooth. In this case the inequalities of the opposed surfac
Archive image from page 1067 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana03todd Year: 1847 Portion of of Lophhis piscatorius, showing the ligamenfous attachment of the teeth. a, a, a, anterior teeth; b, b, b, posterior teeth in their erect position; cyone of these teeth laid flat towards the interior of the mouth, the dotted lines indicating its condition when erect. (After Owen.) a stimulus and developes a process cor- responding in size and form with the so- lidified basis of the tooth. In this case the inequalities of the opposed surfaces of the tooth and maxillary dental process fit into each other, and for some time they are firmly at- tached together by a thin layer of ligamentous substance; but, in general, anchylosis takes place to a greater or less extent before the tooth is shed. The small anterior maxillary teeth of the Angler (Lophius) are thus attached to the jaw, but the large posterior ones remain always moveably connected by highly elastic glisten- ing ligaments, which pass from the inner side of the base of the tooth to the jaw-bone (fig. 512, f/). These ligaments do not permit the tooth to be bent outwards beyond the ver- tical position, when the hollow base of the tooth rests upon a circular ridge growing from the alveolar margin of the jaw; but the liga- ments yield to pressure upon the tooth in the contrary direction, and its point may thus be directed towards the back of the mouth; the instant, however, that the pressure is remitted, the tooth flies back, as by the action of a spring, into its former position. The deglu- tition of the prey of this voracious fish is thus facilitated and its escape prevented. The teeth of the Wolf-fish, Anarrhicus, are extremely remarkable. They do not adhere immediately to the jaw or to the palate bone, but are attached to conical or hemispherical osseous epiphyses, which are fixed to these bones by a kind of suture, and are easily detached at certain peri
Size: 2146px × 932px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1800, 1840, 1847, americana, anatomy, archive, biodiversity, blc, book, bookauthor, bookcentury, bookcollection, bookcontributor, bookdecade, bookpublisher, booksubject, bookyear, drawing, historical, history, illustration, image, london_sherwood_gilbert_and_piper, mblwhoi, mblwhoi_library, page, physiology, picture, print, reference, todd_robert_bentley_1809_1860, vintage, zoology