S-Space College of Medicine/School of Medicine (의과대학/대학원) Dept. of Medicine (의학과) The Seoul Journal of Medicine The Seoul Journal of Medicine Vol. 09 No.2 (1968)
한국인대뇌 선조야(시각피질중추)의 세포구축학적 연구보유
Contribution to the Study on the Cytoarchitectonic's of the Striate Area (Brodmann'sArea 17) in the Cerebral Cortex of the Korean
- 장기완; 이명복
- Issue Date
- 서울대학교 의과대학
- Seoul J Med, Vol.9 No.2, pp. 15-40
- This investigation is a study on the cytoarchitectonics.
of the crown of the cortex in the striate area of 227
Korean brains(130 brains of the male, aged from newborn
to 85, 97 brains of the female, aged from newborn'
to 61). The thickness of the total cortex and each cortical'
layer, the relatvie neuron density and the relatvie glia
density in (100,1.1)3 of each cortical layer and the relative'
total neuron and glia densities of the cortex were observed
and the results were summarized as follows:
1. The thickness of the cortex in the 0-1 year agegroup
was 72.0-77.4% of the adult cortex and increased,
rapidly to be 90. 5-91. 8% of the adult cortex in the
2-5 year age group and thereafter increased slowly to'
the adult mean thickness in the 11-15 year age group.
The mean thickness of the adult cortex was 2. 3mm. The thickness of the cortex increased gradually as the
brain weight increased to 1100-1199 gms thereafter it
was relatively constant.
2. The highest neuron density in the 0-1 year age
group decreased rapidly to the adult mean value in the
2-5 year age group and following this there was no
significant changes but after 60 years of age there was
found the tendency of slight decrease. The mean neuron
density of the adult cortex was 742.1-762.5.
As the relationship between the neuron density and the
brain weight, it was highest in the 300-499gms stage
of brain weight and decreased gradually to the adult mean
value in the 1100-1199 gms stage and following this
it was relatively constant.
3. The glia density in the 0-1 year age group was
highest and it decrased rapidly to the adult mean value
in the 2-5 year age group and following this it decreased
slowly to the mimimum value in the 11-15year age
group and thereafter it increased gradually as the age
increased. The mean value of the adult was 853. 2863.6.
In the 300-499gms. stage of the brain weight
the glia density was highest and decreased gradually to
the adult value in the 1100-1199gms. stage and thereafter
it was relatively stable.
4. The cortical thickness, neuron density and glia
density had neither sexual difference nor left-right