SEM corrosion-casts study of the microcirculation of the flat bones in the rat.
Anat Rec
; 247(4): 462-71, 1997 04.
Article
en En
| MEDLINE
| ID: mdl-9096785
BACKGROUND: Little is known about the organization of microcirculation in flat bones in comparison with long bones. This study, therefore, helps us to determine the design of this vascular system in flat bones in relation to their structure and function. METHODS: The organization of microvasculature in parietal, scapula, and ileum bones of 15 young sexually mature rats, aged 6-7 weeks, was studied by light and scanning electron microscopy (SEM) from vascular corrosion cast (vcc), a resin-cast obtained material. RESULTS: Our observations show that the pattern of the microcirculation in flat bones is different in the thick and thin parts of such bones. Where the bone is thinner than 0.4 mm, only periosteal and dural network exist. Larger vessels which do not form a real network connect the two tables of the bones in these regions. In thicker areas, the organization of the microvasculature is similar to that in long bones, with distinct periosteal, cortical and bone marrow networks. Moreover, in different bones, outer networks show slightly different characteristics according to the different adjacent structures (dura mater, muscles etc.). Different types of vessels were recognized by comparing their different diameter, course and endothelial imprints. CONCLUSIONS: The microvascular patterns of the flat bones are strongly influenced by the bone thickness. The different microvascular systems can interact both with the bone modelling and remodeling and with the variable metabolic needs, modifying the microvascular pattern and the blood flow. This is even more important in view of the reciprocal influence of the different networks within the same bone.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Huesos
/
Molde por Corrosión
/
Microcirculación
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Anat Rec
Año:
1997
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Estados Unidos