Physiology and Hygiene for Secondary Schools

and usefully the natural span of life: these are problems that concern all people. They are, however, but different phases of one great problem-the problem of prop

ture, use of parts, and care or management. This causes the main subject to

nown as gross anatomy and histology. Gross anatomy treats of the larger structures of the body, while histology treats of the minute struc

t parts of the body-the work which the parts do and how they do it

ealth." Hygiene is said to be personal, when applied by the individual to his own body; domestic, when applied to a s

the plan of the body. To live properly one must supply the conditions which his body, on account of its nature and plan, requires. On the other hand, he must avoid those things and conditions which are injurious, i.e., out of harmony with the body plan. To secure these results, it is necessary to determine what is and what i

ested. In order to determine what things and conditions are in harmony with the plan of the body, we must know what that plan is. This knowledge is obtained through a study of anatomy and physiology. The knowledge gained through these subjects also renders the study of hygiene more interesting and val

omplish their aims and ambitions in life; they miss the joy of living; they lose their ability to work and become burdens on their friends or society. The proper management of the body means health, and it also means the capacity for work and for

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