Morphological aspects of the distal medial striated artery (artery of Heubner)
Braz. j. morphol. sci
;
19(2): 63-66, July-Dec. 2002. ilus
Artículo
en Inglés
| LILACS
| ID: lil-355076
ABSTRACT
The distal medial striated artery, one of the branches of the anterior complex of the circle of Willis, is important because it supplies the caudate nucleus and adjoining putamen, part of the septal nucleus and fibers of the anterior part of the internal capsule. This vessel situated in a region often dealt with in neurological surgeries and can be injured because of its anatomical relationship with important structures in this region. In this study, we examined the anatomical arrangement in 50 human brains fixed in 20 per cent formaldehyde solution. The origin of this vessel was assessed relative to the pre-, post- and communicating segments of the anterior cerebral artery. Of the 121 arteries found, 49.6 per cent arose from the post-communicating segment and were duplicated in 50.4 per cent of the cases, single in 49.6 per cent and symmetrical in 44.5 per cent. The distal medial striated artery was absent in only one specimen. In relation to the pre-communicating segment, the course of this artery was anterior in 77 per cent of the cases, superior in 20 per cent and posterior in 3 per cent. A division of the anterior perforated substance into anterior, lateral and medial regions served to locate the terminal branches of the artery. The terminal branches penetrated the anterior, lateral and medial regions in 48.8 per cent, 47 per cent and 4.3 per cent of the cases respectively.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Círculo Arterial Cerebral
/
Arteria Cerebral Anterior
/
Arteria Cerebral Media
Límite:
Adulto
/
Humanos
Idioma:
Inglés
Revista:
Braz. j. morphol. sci
Asunto de la revista:
Anatomía
Año:
2002
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Superior School of Sciences of the Santa Casa de Misericórdia de Vitória/BR
Similares
MEDLINE
...
LILACS
LIS