. A manual of elementary zoology . Zoology. THE FROG: HISTOLOGY, GERM CELLS, DEATH 99 Blood is classed among the skeletal tissues on account of the plentifulness of its fluid ground substance, although it only acts as a supporting tissue when under high pressure it renders an organ turgid. The fluid part of blood is known as the plasma, the cells as blood corpuscles. They are of two kinds, red and white. Each red corpuscle is a thin, biconvex, oval disc, yellow in colour owing to the. FlG. 58.—A portion of the bladder of a frog, stained and highly magnified. , Connective-tissue cell;
. A manual of elementary zoology . Zoology. THE FROG: HISTOLOGY, GERM CELLS, DEATH 99 Blood is classed among the skeletal tissues on account of the plentifulness of its fluid ground substance, although it only acts as a supporting tissue when under high pressure it renders an organ turgid. The fluid part of blood is known as the plasma, the cells as blood corpuscles. They are of two kinds, red and white. Each red corpuscle is a thin, biconvex, oval disc, yellow in colour owing to the. FlG. 58.—A portion of the bladder of a frog, stained and highly magnified. , Connective-tissue cell; , unstriped muscle fibres ; ;., nuclei of the epithelioid cells which cover and line the bladder. presence of a compound of a protein with an iron-contain- ing organic substance. This compound is called hemoglobin, and it has the power of uniting with oxygen to form a loose compound known as oxyhcemoglobin, which is formed in the respiratory organs and breaks down in the capillaries of the tissues, yielding its oxygen. Thus it serves as a carrier of oxygen. The same substance is found in the red corpuscles of all backboned animals, but in man and other mammals these corpuscles are round biconcave discs. 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 Borradaile, L. A. (Lancelot Alexander), 1872-1945. London : H. Frowde, Hodder & Stoughton
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1920
