A STUDY ON THE HUMAN INTRACEREBRAL SEGMENTS OF THE CENTRAL BRANCH OF THE MIDDLE CEREBRAL ARTERY
- VernacularTitle:人大脑中动脉中央支脑内段的研究
- Author:
Hui HAN
;
Weilong ZHANG
- Publication Type:Journal Article
- Keywords:
Middle cerebral artery;
Intracerebral segment of the central branches;
Internal capsule: Basal nucleus;
Microvascular architecture;
Human
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The origin, diameter, arrangement pattern, distribution and microvascular architecture of the intracerebral segments(IS) of the central branches of the middle cerebral artery(MCA) were examined and pictured in 27(10 infants, 5 newborns, 12 fetuses) unfixed brains under stereoscopic microscope and scanning electron microscope. 1. The extracerebral segments(ES) of the central branches run toward the anterior perforated substance in S-shaped curves. The IS arise from ES or their collateral branches. They form the fan-shaped appearance in rostromedial and caudolateral state after entering brain. 2. The IS give rise collateral branches in right or acute angles, and they are of two kinds: the longitudinal and the transverse branches. The mean diameter of the IS in original site is 0.21?0.18mm for the medial group; 0.36?1 0.21mm for the lateral group. 3. The medial group mainly distribute in the rostal part of the internal capsule and basal nucleus; the lateral group mainly distribute in the caudal part. 4. Some circular impressions of the precaillary sphincters were observed at the beginning of precapillary arteriole and capillary, converging point of tributary branches of venule. The relationship between the IS of the central branches and the hemodynamics was discussed.
