. The cat; an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. CHAP, ir.] THE CAT'S GENERAL FORM. 17 flattened in shape, sometimes giving off ramifying processes, which may unite with branches from neighbouring connective-tissue cor- puscles. Within the corpuscle is a round or oval nucleus, which contains one or more niic/eo/i* The structureless substance and fibres form what is called the Jiiatru of the tissue, and the cor-. Fig. 3.—Connective, Adipose and Elastic Tissue. A. /c. B. Loose areolar tissue with fat cells. The fat cells. and C. Magnif
. The cat; an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. CHAP, ir.] THE CAT'S GENERAL FORM. 17 flattened in shape, sometimes giving off ramifying processes, which may unite with branches from neighbouring connective-tissue cor- puscles. Within the corpuscle is a round or oval nucleus, which contains one or more niic/eo/i* The structureless substance and fibres form what is called the Jiiatru of the tissue, and the cor-. Fig. 3.—Connective, Adipose and Elastic Tissue. A. /c. B. Loose areolar tissue with fat cells. The fat cells. and C. Magnified view of areolar tissue treated witli acetic, acid. The wliite fibres are here no longer seen, and the yellow oi' elastic fibres witli the nuclei come into view. In Fig. B, a scries of constrictions is produced liy tlie presence of an elastic libre, which is spirally disposed about the flicre swollen and invisible) white tilires. The white fibres may be ^olou of an inch in thickness or even less. D. Fibres of yellow or elastic tissue. puscles are cells which arc thus more or less plentifully distributed within the matrix. Intermixed with the ordinary fibres may be others of a yellower colour (and with a different chemical reaction), known as " elastic fibres," or "elastic ; These fibres may be rendered con- spicuous under the microscope by the addition of acetic acid, which causes the white fibres to swell and become indistinct, thus revealing the existence of the unaffected yellow ones. * It may be well to remind tlie reader that the body of every animal, and there- fore of the cat, consists at first of a single " cell," or minute particle of protoplasm, and afterwards, for a time, of an aggre- gation of such cells whence all the tissues of the body are ultimately derived, and which in different degrees preserve traces of then- cellular origin. Cells commonly contain a modified internal part or parts called a nucleus or nuclei, when th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectanatomy, bookyear1881
