Anatomy, physiology and hygiene . Fig. Joints of the Skull. Fig. Joint (Ball and Socket). 31. The skull rests and nods upon the first vertebra,or atlas. It also rests upon a tooth-like process of theaxis, or second bone of the spinal column, which projectsupwards through a hole in the atlas and forms a pivot, or 1 Upper bones of skull (Fig. 12). 2The upper bones of the skull of a baby do not unite until monthsafter birth, in order to allow the brain to grow. The dovetail joints Laterin life fasten these bones together very firmly, so that an adult can carryconsiderable weight
Anatomy, physiology and hygiene . Fig. Joints of the Skull. Fig. Joint (Ball and Socket). 31. The skull rests and nods upon the first vertebra,or atlas. It also rests upon a tooth-like process of theaxis, or second bone of the spinal column, which projectsupwards through a hole in the atlas and forms a pivot, or 1 Upper bones of skull (Fig. 12). 2The upper bones of the skull of a baby do not unite until monthsafter birth, in order to allow the brain to grow. The dovetail joints Laterin life fasten these bones together very firmly, so that an adult can carryconsiderable weight upon the head without injury. 38 BONES AND JOINTS. swivel, upon which the head rotates, or turns from side toside, the atlas also turning with 1, opening for spinal cord. 3-3, transverse ligament, inclosing, with the bone, an opening for part of axis to pass up , resting places for prominences on skull.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecthealth, booksubjectph
