Alklenieca classification of mental weakness.. Physical characteristics and anatomical and physiological and pathological characteristics. Disease, Down (Down syndrome)

The classification depends Alklenieca of mental weakness on the existence of some physical characteristics and anatomical and physiological and pathological next to the distinctive mental impairment is the most important patterns Alklenkih for weak-minded:

  Disease, Down's "Down syndrome":

Almanguloah mongolism: sometimes called gawk as Mongolianor Mongolian dementia or Down's disease. And features of thesephysical characteristics are similar to the features of a clear sexMongolian imbecility or dementia associated. The reason for this case, the internal secretion disorder in the mother in early pregnancy, especially if elderly. Where he says Hasr and Lehmanthat the average child have it controlled 46 Kromozuma andMongolian child has a 47 Kromozuma.

Cretinism Oalgosaa:

Dwarfism or Kassaa _cretinism_: a case of mental disability is short stature, it does not reach the length of the individual to the90 cm regardless of chronological age. Sometimes known as(cretinism). The reason for this case, lack of the thyroid gland, causing brain damage.