How to keep well : a text-book of health for use in the lower grades of schools with special reference to the effects of alcholic drinks, tobacco and other narcotics on the bodily life . nd round atthe shoulders, we use this joint. A boy uses this jointwhen he turns a grindstone, or swings a bat in playingbase-ball. The round head of the thigh-bone, as you already know, fits into the cup-likesocket of the hip-bone,thus giving the legs greatfreedom of motion. Allthese joints are liable tobe put out of their often happens to theshoulder-joint, and occa-sionally to the
How to keep well : a text-book of health for use in the lower grades of schools with special reference to the effects of alcholic drinks, tobacco and other narcotics on the bodily life . nd round atthe shoulders, we use this joint. A boy uses this jointwhen he turns a grindstone, or swings a bat in playingbase-ball. The round head of the thigh-bone, as you already know, fits into the cup-likesocket of the hip-bone,thus giving the legs greatfreedom of motion. Allthese joints are liable tobe put out of their often happens to theshoulder-joint, and occa-sionally to the who play ball, oftenput their finger-joints outof place. We should becareful not to play at tooviolent and rough games,by which we may not onlyig t ip-joint. puj. ^e joints out of place, but may also break the bones and sprain the children have the habit of pulling the finger-joints, to make them crack. This is a foolish cus-tom : it disfigures the hand by enlarging the knuckles,and, besides, may cause permanent injury. 16. How Bones are tied to Each Other. — If wepick up two bones that have lain for years, perhaps,bleaching in the sun and rain, we find that the ends. Fig. 14. THE BONY FRAMEWORK 27 are smooth, and may fit exactly into each other. Putthe ends together, and they will not stay a momentunless tied together by strings or something of the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecthygiene, bookyear1901
