ANSWERS 



T O T'H E 



PRACTICAL QUESTIONS 



IN THE 



FOURTEEN WEEKS IN HUMAN PHYSIOLOGY. 



38. i. Why does not a fall hurt a child as much as it 

 does a grown person ? 



The bones of a child are largely cartilaginous, and so 

 do not transmit a shock, or readily yield to a blow. They 

 are also well padded with fat. 



2. Should a young child ever be urged to stand or walk ? 



No ; bow-legs are often caused by the premature use 

 of the lower limbs in standing or walking. Nature is the 

 best guide in such matters. 



3. What is meant by " breaking one's neck ? " 



The dislocation of the vertebrae and consequent injury 

 of the spinal cord. 



4. Ought chairs or benches to have straight backs ? 



The backs should conform to the natural shape of the 

 spine. This tends to prevent curvatures and other dis- 

 tortions of the vertebral column. 



