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Development of intracranial arterial patterns in turtles
Author(s) -
Burda Doris J.
Publication year - 1965
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051160203
Subject(s) - anatomy , biology , cerebral arteries , choroid plexus , perforating arteries , hindbrain , circle of willis , cerebrum , cerebral cortex , cerebellum , cerebral hemisphere , anastomosis , plexus , central nervous system , neuroscience , artery , medicine , surgery , radiology , psychiatry
Observations on chelonian intracranial arteries are based primarily on the adult condition in Pseudemys scripta and on a series of Chrysemys marginata embryos. Those vessels which show major modifications are the anterior cerebral, posterior cerebral, cerebellar, and internal auditory arteries. The distal portion of the embryonic anterior cerebral is acquired by more medial vessels; from the proximal portion develops the middle cerebral which becomes the major source of supply for the lateral surface of the adult cerebral hemisphere. The posterior cerebral appears early in development and eventually supplies branches to the epiphysis, posterior portions of the hemisphere, olfactory regions, anterior face of the optic lobe, and choroid plexus of the third and lateral ventricles. The cerebellar and internal auditory arteries show similarities in development, each initially supplying the area immediately surrounding a nerve root and then acquiring larger areas of distribution by means of anastomoses with nearby medullary vessels.