OF IMPORTANT TERMS USED IN THE BOOK
I. Relating to the Body as a Whole
Ab'do men (or ăb dō'mĕn). The cavity of the trunk immediately below the diaphragm.
Car'ti lage. Tough, elastic tissue, generally more or less fibrous; called also gristle (grĭs'l).
Cell. The simplest form of living matter, with power to grow, develop, reproduce itself, and, with others of its kind, build up a living fabric.
Di'a phragm (dī'ȧ frăm). The muscular membrane that separates the thorax from the abdomen.
Duct. A tube through which fluid from a gland is conveyed.
Fa tigue' (fȧ tēg'). A condition in which the body cells are worn out faster than they are built up, so that waste matter accumulates in the body and poisons it.
Germ. The simplest form of life, from which a living organism develops.
Gland. A part, or organ, that has the power of making a secretion, peculiar to itself. A gland may be a simple pocket, or follicle, as is an oil gland of the skin, or it may be an aggregate of such glands, as is the liver.