Summary:
From the material of the forty eight (48) human cadavers (both men and women) ,
which were used for the clinical exercises of the students of the Medical
School of Athens, from 2011 to 2014, the nerves which take part in the
formation of the brachial plexus were studied, as long as with the brachial
blexus itself and the arrangement of its primary rami in the neck.
The main elements of the research (variations of brachial blexus and anatomical
structure) were studied according to the tittle research
In the classical anatomical literature, the reported nerves that take part in
the formation of the brachial plexus were found in our study to constitute 59%.
Depending on the number of the nerves that take part in the formation of the
brachial plexus , in these 48 cadavers that were studied, we have concluded
that the brachial plexus presents five (5) variations,the most usual one is the
variations where the C5 – C6 – C7 – C8 – (T1) participate in the formation of
the brachial plexus in a 59% percentage.The least common variation is the one
where (C3) – (C4) – C5 – C6 – C7- C8 – (T1) participate in the formation of the
plexus in a 0,25% percentage.
The different variations of the brachial plexus were classified into two types:
the first one , the cepfalic one, has a (23,25%) percentage and the caudal one,
has a (76,75%) percentage. The number of the primary rami of the brachial
plexus has a variation between 2 and 4 [ 2(20%), 3(79%), 4(1%) ].
From these primary rami , the secondary rami of the brachial plexus are formed.
These are the ventral, the anterior – median and the anterior – lateral rami,
with a large number of variations.
That facilitates doctor in daily medical practice.
