The
veins of the upper body
The veins of the upper limb are divided into a
superficial group which lie in the superficial fascia, and a deep group which
accompany the arteries. Both groups of veins have valves which allow proximal
drainage (a fact which should be borne in mind when using massage) and drain
into the axillary vein.
The
deep veins
Apart from the axillary artery, which is
accompanied by a single vein, all of the arteries are accompanied by two venae comitantes.
The axillary
vein is the continuation of the basilic vein at the lower border of teres major. It ends by becoming the
subclavian vein at the lateral border of
the first rib. Its course is identical to that of the axillary artery, which
lies lateral to it.
The
superficial veins
These are arranged in irregular networks in the
superficial fascia. They are connected with the deep veins by inconstant
perforating veins which pierce the deep fascia. The blood is drained from the superficial system principally by the
basilica and cephalic veins.
The main superficial channels are as follows:
1) The
dorsal venous arch
This would be better named the dorsal venous
plexus, for its arch-like nature is seldom apparent. It lies on the back of the
hand, its position and pattern being
highly variable.
2) The
basilic vein
This arises from the ulnar side of the arch and
ascends along the ulnar side of the distal half of the forearm befoe inclining
forwards to pass in front of the medial epicondyle and enetering the medial
bicipital furrow. Opposite the insertion of coracobrachialis,
it pierces the deep fascia to ascend along the medial side of the brachial
vessels to become the axillary vein at the lower border of teres major. In the forearm it can usually be clearly seen,
particularly in males. It is joined by tributaries from the forearm and by the
median cubital vein in front of the elbow.
3) The
cephalic vein
This arises from the radial end of the dorsal
venous arch and receives the dorsal veins of the thumb. Inclining forwards, it
ascends on the anterolateral part of the forearm as far as the elbow, and then
along the lateral side of the biceps tendon to reach the groove in front of the
shoulder between deltoid and pectoralis major(the deltopectoral groove). It ascends in this groove to the level of
the coracoid process where it turns medially between pectoralis major and pectoralis minor. It pierces the clavipectoral fascia and ends in the axillary vein at
a point just below the middle of the clavicle.
It receives several tributaries in the forearm, and at the elbow is connected
to the basilic vein by the median cubital vein.
4) The
medial cubital vein
This is a short, wide vein, useful for
venepuncture. It runs upwards and medially across the bicipital aponeurosis.
The latter separates it from the underlying brachial artery. It joins the
basilic vein just above the medial epicondyle.
5) The
anterior median vein of the forearm
When present, this vein runs up the middle of
the front of the forearm and may join the basilic or cephalic vein, or may
divide at the cubital fossa into the median cephalic and median basilic veins.
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