. Elements of biology; a practical text-book correlating botany, zoology, and human physiology. Biology. Nucleated blood cells of a frog, as seen vmder the compound microscope; a, colorless corpuscles. Laboratory Exercise. — Examine a prepared slide of the blood of a frog. Note that three constituents are found: (1) Ovoid cells, each containing a nucleus. What color do these bodies have? They are called the red corpuscles. (2) Other colorless corpuscles of irregular form may be seen. What can you say of the number of colorless corpuscles as compared with the red corpuscles? Notice that the col
. Elements of biology; a practical text-book correlating botany, zoology, and human physiology. Biology. Nucleated blood cells of a frog, as seen vmder the compound microscope; a, colorless corpuscles. Laboratory Exercise. — Examine a prepared slide of the blood of a frog. Note that three constituents are found: (1) Ovoid cells, each containing a nucleus. What color do these bodies have? They are called the red corpuscles. (2) Other colorless corpuscles of irregular form may be seen. What can you say of the number of colorless corpuscles as compared with the red corpuscles? Notice that the colorless corpuscles have the power to change their shape. They are said to be amoeboid. Like the amoeba, they also have the power to take up particles of food and other materials and ingest them. (3) The colorless fluid in which the corpuscles float is known as the plasma. Composition of Plasma. — The plasma of blood (when chemically examined in man) is found to be largely (about 90 per cent) water. It also contains a considerable amount of proteid, some sugar, fat, and mineral material. It is, then, the medium which holds the fluid food (or at least part of it) that has been absorbed from the food within the intestine. When the blood returns from the tis- 344. 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 Hunter, George William, 1873-1948. New York, American book company
Size: 2159px × 1157px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookpublishernewyorkamericanbookcompany, booksubjectbiology
