On the right side it branched from the AA as the superficial brachioradiomedian artery and bifurcated at the level of the interepicondylar line (linea interepicondylaris) into the radial artery and ACNMS; on the left side the ABMS branched from the superficial brachial artery in the cubital fossa .
The Group II.1 represents the case when there are two main arterial trunks in the arm ("doubled BA") and the variant superficial brachial artery continues as the ACNM or the common interosseous artery.
(6), described a superficial brachioulnoradial artery as a superficial brachial artery
branching at the elbow into radial and ulnar arteries and coexisting with a typical brachial artery that continues as the common interosseous trunk.
Then new arteries arise by angiogenesis forming the median artery, ulnar artery and the superficial brachial artery
. Finally the brachial and superficial brachial anastomose at elbow level forming the initial part of radial artery.
Keen  subdivides superficial brachial artery
(found in 12.3% dissections) into 3 types: (a) Those superficial brachial arteries which continue in cubital fossa and bifurcate as usual into radial and ulnar arteries (3.6%); (b) Superficial brachial artery
continues as radial artery and known as 'High origin of radial artery' (5.9%); (c) Superficial brachial artery
continues as ulnar artery and known as 'High origin of ulnar artery' (2.8%).
The second artery followed a subcutaneous course directly after the bifurcation, running superficial to the median nerve and was therefore considered to be the vessel as the superficial brachial artery
. At the mid-brachial level both arteries run at the same depth from the skin surface with the median nerve between them (Figure 1b).
These include absence of the radial artery and the presence of a superficial brachial artery
as well as a superficial ulnar artery.
Most conspicuously lacking from the harbor seal foreflipper are two major arteries, a superficial brachial artery
and a radial artery, and their branches.
Many authors in the 19th and even in the 20th century did not distinguish between the superficial brachial artery
(which is an embryological precursor of the BrA) and the BrA itself.
The superficial brachial artery
develops in the axillary region and traverses the medial surface of the arm and runs diagonally from the ulnar to the radial side of the forearm to the posterior surface of the wrist.
Primitive axis artery and superficial brachial artery
are implicated in the morphogenesis of the arteries of the upper limb.
The most frequent anatomic variations of the axillary artery are the persistent superficial brachial artery
, high division of the brachial artery, radial artery and ulnar artery (McCormack et al., 1953; Jurjus et al., 1986; Compta 1991; Baeza et al., 1995).