The above considerations of branching structure are not limited to two-
vascular networks. In the
structure, all blood
vessels lie in the same plane. A three-dimensional
greater flexibility and expansion. Adding on the nonuniform scheme, the
vascular tree has even greater flexibility in defining its structure.
the main branches coming
from the right coronary
it circles the heart. Numbers refer to vascular junctions along the artery. From
Morphological structures of the branching vascular systems have
been reported by numerous investigators. One such an example is shown
given by Zamir
The main vessel branches from the
right coronary artery are shown, together with the numbers that identify
branching junctions as they arise sequentially along the coronary artery.
These numbers are related to the levels of the arterial tree as illustrated
schematically in Fig.
This is used for mapping the branches
arising at these junctions. This scheme clearly shows the tree structure
that is nonuniform and incomplete in terms of the order of branching to
Both the number of junctions and the level or the
tree are clearly defined.
There are other
found in the
circulations. For instances, the morphometry in the pig coronary venous
system by Kassab et al.
and the network anatomy