. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. 30 ANATOMY OF VERTEBRATES. Ji^. nil, 2 !5^ -J ct,X-«-* ^ C)QB|aBllin3D| The different elements of the pri- mary segments are distinguished by- peculiar markings :— The neurapophyses by diago- nal lines, thus — The diapophyses by vertical lines— The parapophyses by horizon- tal lines— The centrum by decussating : horizontal and vertical lines— ! The pleurapophyses \>j diago- nal lines— The appendages by dots—'..'.'.'. The neviral spines and haemal sinnes are left blank. In certain segments the elements are also specifi
. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. 30 ANATOMY OF VERTEBRATES. Ji^. nil, 2 !5^ -J ct,X-«-* ^ C)QB|aBllin3D| The different elements of the pri- mary segments are distinguished by- peculiar markings :— The neurapophyses by diago- nal lines, thus — The diapophyses by vertical lines— The parapophyses by horizon- tal lines— The centrum by decussating : horizontal and vertical lines— ! The pleurapophyses \>j diago- nal lines— The appendages by dots—'..'.'.'. The neviral spines and haemal sinnes are left blank. In certain segments the elements are also specified by the initials of their names :— ns is the neural spine. n is the neurapophj'sis. j)l is the pleurapophysis. c is the centrum. h is the ha3mapophysis, also indi- cated by the numbers 21, 29, 44, 52, 58, 63, 64.' lis is the hasmal spine. a is the appendage. The centrum is the most constant vertebral element as to its existence, but not as to its ossification. There are some living fishes, and formerly there were many, now extinct, in which, whilst the peripheral elements of the vertelira become ossified, the central one remains unossificd ; and here a few words are requisite as to the developement of vcrtcbra\ § 16. Di'vchpcmcnt of rerfebrcp.— The central basis of the ncuroskcleton is laid down in the embryo of every vertebrate animal as a more or less ' Sco 'Table or Synonyms, Spcciiil Homologies,' indicated by numbers. for the names of tlic bones. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Owen, Richard, 1804-1892; Cornell University. College of Veterinary Medicine. Flower-Sprecher Veterinary Library. fmo. London, Longmans, Green
Size: 794px × 3148px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorowenrichard18041892, bookcentury1800, bookdecade1860
