Undernutrition is a known factor influencing the pattern of brain development. This factor was observed early as to cause a reduction of brain weight (Sugita, 1918 and Jackson and Steward, 1920). Several parameters have been used bY
which the effect of undernutrition on the develoPment of the brain could be defined, among these are DNA content (Chase et at, 1969; Winick et aI, 1968 and Winick,(1969), cell number (Winick et aI,I968 and Zomenhof ef al, 1968), neuron
size and ultrastrutural changes (Lowry et aI 1962, and Olivito,1977),myelination (Dobbing, 1964; Davidson and Dobbing, 1966; Dobbing and Widdowson, 1965; Cully and Mertz,1965 and Benton et al,1966) and on garification ( Abdel Kader et aI.(1976) .