. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Horns of the Cabrit. (From a specimen in Lond. Coll. Surg. Museum.) In the Buffaloes the horns acquire a pro- digious size, and the cuticular sheath forms, in some instances, a thick envelope over the entire forhead. Vertebral column and bones of tJie trunk. — Considerable disparity prevails in the length of different portions of the spine, depending upon the comparative elongation of the individual bones, and not upon their number. The following table, selected from Cuvier, illustrates the trifling deviations in a nume-
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Horns of the Cabrit. (From a specimen in Lond. Coll. Surg. Museum.) In the Buffaloes the horns acquire a pro- digious size, and the cuticular sheath forms, in some instances, a thick envelope over the entire forhead. Vertebral column and bones of tJie trunk. — Considerable disparity prevails in the length of different portions of the spine, depending upon the comparative elongation of the individual bones, and not upon their number. The following table, selected from Cuvier, illustrates the trifling deviations in a nume- rical point of view, — the seven cervicals being added and indicated in the totals : — D. t» s. c» TOTALS. 12 7 4 17 47 12 7 5 12 43 13 6 3 14 43 13 6 4 16 46 14: 5 4 18 48 13 6 4 14 44 13 5 4 14 43 13 6 4 12 42 13 6 4 16 46 13 6 5 18 49 Camel - Vicugna Moschus Red Deer Giraffe - Gazelle - Chousingha Goat Sheep Ox In Camelidae the bodies of the vertebras of the neck are much lengthened (fig. 323.), but it is in the Giraffe (fig. 34-5.) that we see the most remarkable conformity to the cer- vical type in this respect. The spinous pro- cesses of this division of the column are lessened in all mammiferous animals in pro- portion to the length of the cervix, and therefore we find them in the above men- tioned ruminants almost entirely effaced (ex- cept in the seventh vertebrae) to admit of free motion backward. This action is further facilitated in the Camels and in the Giraffe by the ball and socket-like conformation of the articular ends of each vertebral body, as pointed out by Profs. De Blainville and Owen. The anterior extremity of the " cen- trum " is convex (fig. 344.), and the poste- Fig. Section of the cervical vertebra of the Camel. (From Coll. Surg. Museum.) rior concave, but there is no intervertebral synovial apparatus as seen in reptiles. The transverse processes in the short-necked typical ruminants are compressed, and form double " apo
Size: 1033px × 2420px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, booksubjectanatomy, booksubjectphysiology, booksubjectzoology
