Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 FIG. 74 a—Diagram of the vertebral column of aTeleostean fish with verte- bral constriction of the notochorcl. Ch, notochord; Wk, bony vertebral bodies ; J, membranous intervertebral section. FIG. 74 b—Vertebra of a fish. 5', ver- tebral body. Ob, neural arch (neum- pophysis) ; Ub, haemal arch (hfeinapo- physis) ; D. neural spine ; D', hwmal spine ; K, rib. uniform segmentation and partially fuse with one another to form several successive regions, the parts of which are capable of a gre
Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 FIG. 74 a—Diagram of the vertebral column of aTeleostean fish with verte- bral constriction of the notochorcl. Ch, notochord; Wk, bony vertebral bodies ; J, membranous intervertebral section. FIG. 74 b—Vertebra of a fish. 5', ver- tebral body. Ob, neural arch (neum- pophysis) ; Ub, haemal arch (hfeinapo- physis) ; D. neural spine ; D', hwmal spine ; K, rib. uniform segmentation and partially fuse with one another to form several successive regions, the parts of which are capable of a greater or less amount of movement upon one another (head, neck, thorax, lumbar region, etc.) In this case, however, the parts of the skeleton of the chief axis are usually less movable upon one another, while, on the contrary, a much more perfect locomotion is effected by the extensive movements of the paired extremities or limbs. The limbs likewise possess a solid skeleton, to which the muscles are attached, and which is usually elongated and may be external or internal, and is attached more or less closely to the axial skeleton. The most essential property of animals is that of sensation. This
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