Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 59. (Budapest 1967)
Dezső, Gy.: The changes of some cephalic measurements of school children aged 7-17 years, in Budapest
Accordingly, the greatest rate of growth is attained by the entire cranial height and entire facial height, an effect due to the changes resultant from the change of teeth and the emergence of the permanent set of teeth. This is followed, owing to the same reasons, by the alteration of the bizygomatic and bigonial breadths. The changes of the brain case are of a much smaller rate. The growth of the brain, by the termination of the myelinization of the brain cells, strongly decreases after attaining the age of 2—3 years. The increase values can be referred to the Table IV Head - ear height (po-b) (boys) Age N M Increase s^ s V V 7 51 123. 66 19. 53 4. 41 8 66 125. 33 1. 67 18. 95 4. 35 9 47 126. 47 1. 14 39. 80 6. 30 115 _ 138 10 52 126. 90 0. 43 19. 66 4. 43 115 139 11 81 127. 03 0. 13 34. 84 5. 90 116 141 12 63 127. 31 0. 28 31. 00 5. 56 118 141 13 90 127. 71 0. 40 31. 09 5. 57 118 141 14 113 128. 56 0. 85 29. 37 5. 41 118 142 15 126 129. 14 0 58 43. 61 6, 60 115 144 16 80 129. 24 0 10 33. 22 5. 76 119 143 17 52 129. 92 0. 68 • 29. 81 5. 46 120 140 (girls) Age N M Increase s 2 s V V 7 48 120. 66 41. 78 6. 46 110 _ 135 8 60 122. 11 2. 45 35. 06 5. 92 110 136 9 64 123. 68 1. 53 32. 84 5. 73 111 137 10 65 124. 07 0. 39 33. 92 5. 82 110 138 11 63 125. 82 1. 75 33. 88 5. 82 110 138 12 69 126. 85 1. 03 34. 12 5. 84 .115 140 13 64 127. 40 0. 55 23. 36 4. 83 115 137 14 27 127. 70 0. 30 34.. 08 5. 83 120 140 15 80 128. 05 0. 35 29. 21 5. 40 118 138 16 107 128. 79 0. 64 30. 25 5. 50 116 140 thickening of the cranial bones, chiefly to the development of the bony superciliary arch and the evolvement of the occipital surfaces of muscular attachment, as well as the greater increase of its connective tissues, apparently substantiated also by the order of sequence: the length—breadth and the head—ear height. Sexual differences can always be shown in favour of the boys, except for the head-ear height, referring to the higher cranial vault of the girls. Therefore, in my opinion, growth can be attributed only to the facial skull, while the expression increase is the more correct usage defining the alteration of the brain case. There is no evidence of the jDhenomenon, known from the studies of corporeal development, that most postcranial body measurements of the girls exceed in absolute values those of the boys at the period of adolescence, in the years 11—13. This also demonstrates that there is no question of a growth influenced by a number
