... fontanelle." These openings are termed the _fontanelles_, because we can feel the pulsations of the brain through them, like the bubbling of water in a fountain. They gradually diminish in size, owing ... rest of the body. FIG. 6. [Illustration: _The Spine; the seven vertebræ of the neck, cervical; the twelve of the back, dorsal; the five of the loins, lumbar;_ a, _the sacrum, and_ b, _the ... each other and to the cartilage above, and two, the floating ribs, are loose. The natural form of the chest is that of a cone diminishing upward. But, owing to the tightness of the clothing...