Publication: Cerebral microvascular architecture in the common tree shrew (Tupaia glis) revealed by plastic corrosion casts
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0
Issued Date
2000
Resource Type
File Type
application/pdf
ISSN
1059910X
Other identifier(s)
2-s2.0-0033848408
Rights Holder(s)
Scopus
Bibliographic Citation
Microscopy Research and Technique. Vol 50, No.5 (2000), p.411-418
Suggested Citation
Poonkhum R., Pongmayteegul S., Meeratana W., Pradidarcheep W., Thongpila S., Mingsakul T., Somana R. Cerebral microvascular architecture in the common tree shrew (Tupaia glis) revealed by plastic corrosion casts. Microscopy Research and Technique. Vol 50, No.5 (2000), p.411-418. doi:10.1002/1097-0029(20000901)50:5<411 Retrieved from: https://hdl.handle.net/20.500.14740/7005
Abstract
The vascularization of the cerebrum (cerebral cortex and basal ganglia) in the common tree shrew (Tupaia glis) has been studied in detail using vinyl injection and vascular corrosion cast/SEM techniques. It is found that the arterial supply of the cerebral cortex are from cortical branches of the middle cerebral artery (MCA) and of the anterior cerebral artery (ACA). These arteries are in turn branches of the internal carotid artery (ICA). In addition, the cerebral cortex receives the blood from the cortical branches of the posterior cerebral artery (PCA) that originates from the basilar artery (BA). These cortical arteries gives rise to rectilinear orientated intracortical arteries that are divided into dense capillary networks to supply the cerebral cortex. The capillary networks drain the blood into intracortical veins and then into the tributaries of major superficial cerebral veins. The basal ganglia (caudate and lentiform nuclei) are supplied by central or perforating branches of the ACA and MCA. These central or medullary arteries give rise to arterioles that ramify into dense capillary plexuses. The venous blood from both nuclei drains into venules and finally into the tributaries of internal cerebral veins. It is obvious that on the ventral aspect, the diameter of the lateral striate artery (LSA) and of the penetrating arterioles from the MCA are much smaller than that of the MCA. These arterioles have few side branches while the peripheral branches of the superficial cerebral arteries exhibit several series of branches that are gradually reduced in diameter before branching into intracortical arteries. This could be one of the reasons why the rupture of cerebral arteries in man mostly occurs in the those originating from the ventral surface rather than from the dorsolateral surface. (C) 2000 Wiley-Liss, Inc.
Subject(s)
Animal experiment
Animal tissue
Anterior cerebral artery
Arterial circulation
Article
Basal ganglion
Brain cortex
Brain microcirculation
Controlled study
Female
Male
Middle cerebral artery
Nonhuman
Posterior cerebral artery
Primate
Priority journal
Scanning electron microscopy
Species difference
Venous circulation
Animals
Blood Vessels
Brain
Female
Male
Microscopy, Electron, Scanning
Plastic Embedding
Polymers
Tupaia
Vinyl Compounds
Animalia
Myoxus
Primates
Tupaia glis
Animal tissue
Anterior cerebral artery
Arterial circulation
Article
Basal ganglion
Brain cortex
Brain microcirculation
Controlled study
Female
Male
Middle cerebral artery
Nonhuman
Posterior cerebral artery
Primate
Priority journal
Scanning electron microscopy
Species difference
Venous circulation
Animals
Blood Vessels
Brain
Female
Male
Microscopy, Electron, Scanning
Plastic Embedding
Polymers
Tupaia
Vinyl Compounds
Animalia
Myoxus
Primates
Tupaia glis