. Text-book of zoology for junior students. Zoology. Fi". Vu.—D!;i^,'raiiis i I'jpTX'Si'iifiii,^^ transM'isi; scr) ions nf nnc ° A—anil uue of tlir Veiii'lij-ahL, H. ri W'M >,( the li.«l Htemal or blooil-vascnlar system : 7/ XeT\nHs system brain and spinal cord, enclosed in a separate tube ; dorsalis. if the hi-hm- Inwrlebrata, ' ; Ij Alinn'ntar}' eanal ; <; II Cerebin-spinal axis or fh Xiituehord, ur chorda vertebral cohimn will be ilescribed shortly, and it is sufficient to state here that it consists of a series of bony or cartilaginous seg- ments or " vertebne," arrang
. Text-book of zoology for junior students. Zoology. Fi". Vu.—D!;i^,'raiiis i I'jpTX'Si'iifiii,^^ transM'isi; scr) ions nf nnc ° A—anil uue of tlir Veiii'lij-ahL, H. ri W'M >,( the li.«l Htemal or blooil-vascnlar system : 7/ XeT\nHs system brain and spinal cord, enclosed in a separate tube ; dorsalis. if the hi-hm- Inwrlebrata, ' ; Ij Alinn'ntar}' eanal ; <; II Cerebin-spinal axis or fh Xiituehord, ur chorda vertebral cohimn will be ilescribed shortly, and it is sufficient to state here that it consists of a series of bony or cartilaginous seg- ments or " vertebne," arranged so as to foi-ju a longitudinal axis upon which the spinal cord is supported. It is to lie remembered, however, that all Vertebrate animals do not possess a vertebral column. They all possess a notochord, but this may remain per- throughout life, and in many cases the development of the spinal column is very imperfect. The skeleton of all Verteljratc aidmals is iiiti'mul, and the nuiscles are attached to its ]i;irts. The value of this character is in no way affected by the fact tliat ni:i,iiy Verteljrates, such as the Tortoises, Crocodiles, and othci's, pcjsscss an cit'-ni'il skeleton well. The liiuha of Verleliratc ;iiiiiii:\ls are j'.lways articulated or. 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 Nicholson, Henry Alleyne, 1844-1899. New York, American Book Co
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1885
