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An Anatomical Study of the Arteries Feeding the Triceps Brachii Muscle of Swine (2000)

Gruionu, G. ; Constantinescu, G. M. ; Laughlin, M. H.

Oxford, UK : Blackwell Science, Ltd

Anatomia, histologia, embryologia 29 (2000), S. 0

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ISSN: 1439-0264

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Medicine

Notes: The arterial vascular network of the porcine triceps brachii muscle (TBM) (an extensor muscle to the forearm) was studied and compared to another extensor muscle (the soleus muscle) of small rodents. The left axillary arteries (LAA) of nine Yucatan miniature swine were perfused with latex material to reveal the organization of the arterial blood supply to the TBM. Blood is supplied to the TBM by the main branches of the LAA. Some of the branches end in one of the four heads of the TBM. Other branches continue to bifurcate further and to supply blood to adjacent muscles. The feed arteries (FAs) arise as side–branches at regular distances from the branches of the LAA. The mean number of FAs per TBM was 109.7 and the mean diameter was 388 μm. The distribution of FAs to the muscle area is heterogenous. Most FAs penetrate the epimysium of the TBM on its medial aspect. It appears that more FAs come out of the branches of LAA that end in the TBM as compared to arteries which continue to bifurcate away from TBM. FA diameters were in the range of 300 μm. This study is the first necessary step towards understanding the distribution of oxygen and nutrients to the porcine skeletal muscle. It reveals the presence of a more complicated vascular network than that observed previously in small laboratory animals.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1046/j.1439-0264.2000.00231.x

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