. Elementary biology, animal and human. Biology. DIGESTION AND ABSORPTION OF NUTBIJENTS 87 Examine carefully each of the teeth in your mouth and indicate in a table like the following the number of cavities (unfilled) and the number of fillings that you find. Right Half op Upper Jaw Left Half op Uppeb Jaw Right Half of Lower Jaw Left Half of Lower Jaw Cavity Filling Cavity Filling Cavity FUling Cavity Filling Incisors . Canines . Bicuspids Molars . .. 116. Arrangement of the teeth. — Within the mouth cavity the solid food is cut into small pieces, mixed with the juices of the mouth, and then g
. Elementary biology, animal and human. Biology. DIGESTION AND ABSORPTION OF NUTBIJENTS 87 Examine carefully each of the teeth in your mouth and indicate in a table like the following the number of cavities (unfilled) and the number of fillings that you find. Right Half op Upper Jaw Left Half op Uppeb Jaw Right Half of Lower Jaw Left Half of Lower Jaw Cavity Filling Cavity Filling Cavity FUling Cavity Filling Incisors . Canines . Bicuspids Molars . .. 116. Arrangement of the teeth. — Within the mouth cavity the solid food is cut into small pieces, mixed with the juices of the mouth, and then ground into a pulpy mass. A large part of this work is done by the teeth, which are arranged in two semicircular arches (Fig. 29). In a normal set of teeth each tooth in the lower jaw works against a corresponding tooth in the upper jaw, and this is very necessary in order to chew the food properly and to keep teeth and gums in a healthy condition. If, however, the teeth do not develop as described above, a competent dentist should be employed to correct the irregularities. 117. Milk teeth. — During early childhood there appears a first set of milk teeth, which later are gradually loosened and dis- FiG. 29.—Arrangement of the 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
