. Elementary biology, animal and human. Biology. Fig. 82. — Network of cap- illaries connecting an ar- tery and a Fig. 83. - - Capillaries in web of frog's foot. 85. Respiration and the liberation of energy. — The walls of the frog's lungs contain a network of capillaries, and in these thin-walled tubes the red corpuscles absorb the oxygen that is forced into these sacs by the upw;ard movement of the floor of the mouth. As we have seen, the blood with a fresh supply of oxygen flows from capillaries of the lungs into ' A tadpole's tail is excellent for demonstrating the blood current. Wr
. Elementary biology, animal and human. Biology. Fig. 82. — Network of cap- illaries connecting an ar- tery and a Fig. 83. - - Capillaries in web of frog's foot. 85. Respiration and the liberation of energy. — The walls of the frog's lungs contain a network of capillaries, and in these thin-walled tubes the red corpuscles absorb the oxygen that is forced into these sacs by the upw;ard movement of the floor of the mouth. As we have seen, the blood with a fresh supply of oxygen flows from capillaries of the lungs into ' A tadpole's tail is excellent for demonstrating the blood current. Wrap a tadpole in wet cloth or cotton and support it so that the tail can be placed between two glass slides on the stage of the micro- scope. The space between the two sUdes should be kept filled with water. The movement of the corpuscles through the margin of the tail should be examined with the low power of the micro' scope (Fig. 83).. 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 Peabody, James Edward, b. 1869; Hunt, Arthur Ellsworth, joint author. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1912
