. The cat; an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. CHAP. III.] SKELETON OF TEE HEAD AND TRUNK. 39 upwards and outwards, outside tlic prezygapopliysis, is termed the mammillary process, or Metajyophysis. The posterior process {a), which projects backwards as much as any other part of the vertebra, is called the accessory process, or AnapopJujsis. The prezygapophyses look almost entirely inwards, while the postzygapophyses (5) look almost entirely outwards. The twelfth and thirteenth dorsal vertebra) are like the eleventh, but their anap
. The cat; an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. CHAP. III.] SKELETON OF TEE HEAD AND TRUNK. 39 upwards and outwards, outside tlic prezygapopliysis, is termed the mammillary process, or Metajyophysis. The posterior process {a), which projects backwards as much as any other part of the vertebra, is called the accessory process, or AnapopJujsis. The prezygapophyses look almost entirely inwards, while the postzygapophyses (5) look almost entirely outwards. The twelfth and thirteenth dorsal vertebra) are like the eleventh, but their anapophyses are stouter and their neural spines are larger and project more forward. § 7. The seven lumbar vertebrje are larger and more massive than the dorsal vertebrre, and increase in size as we proceed back- wards as far as the sixth lumbar (see Fig. 23). Selecting the fifth for comparison with the fifth dorsal, we find its centrum broader in proportion to its depth, about twice as long, less convex transversely below, and with a slight median ridge, called Jiijpcqjophysial* running from before backwards, along its under surface. The neural lamina and pedicel are much longer, and the latter, though deeply notched behind, is scarcely at all so in front. The neural spine is very much 1 , 1 1 J. 1 n 1 i.* 1 Fig. 17.âSide View of the shorter, absoiuteiy as well as relatively. tenth and eleventh vertebk^. It is elongated from before backwards, â¢slightly separated. and inclines forwards instead of back- n! Eleventh vertebra. wards, thus agreeing with the last S; TuSlar process. three dorsal vertebrae. "«â Metapophysis. rr,, 1 ⢠1 7 '^- Psrt of transverse process ine zygapopnyses are tnicKer, and which conceals from view their articular surfaces are differently j,. capituTarproSssf' shaped from those of the dorsal vertebrae. t; ?T'^.^ ^i'"^''- , . *; 1 1 ⢠1 i> ⢠/;. Anterior zygapophysis. prezygapophysiai SUriace is :â >. Posterior zyg
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