ARTERIES OF THE UPPER LIMB
• Vessel changes name as it passes through different regions
• Subclavian Artery ->
Axillary Artery ->
Brachial Artery ->
Radial & Ulnar Artery
AXILLARY ARTERY
• Central structure of the axilla
• Extends from the outer border of the first rib to the inferior
border of the teres major muscle
• Divided into three parts by pectoralis minor muscle
SHOULDER JOINT
• Anastomosis occurs between branches of first part of
Subclavian and third part of Axillary arteries
• Branches from Subclavian Artery:
– 1) Suprascapular artery
– 2) Superficial cervical artery
• Branches from Axillary Artery:
– 1) Subscapular artery
– 2) Anterior circumflex humeral artery
– 3) Posterior circumflex humeral artery
BRACHIAL ARTERY
• Extends from the inferior border of the teres major muscle to
its bifurcation in the cubital fossa
• Lies in the center of the cubital fossa, medial to the biceps
tendon, lateral to the median nerve.
• Terminates by dividing into the radial and ulnar arteries at the
level of the radial neck, in the cubital fossa.
ULNAR ARTERY
• Larger of the two terminal
branches of the brachial artery
• Begins in cubital fossa at level of
neck of radius
• Descends through anterior
compartment of forearm
• It ends by forming the superficial palmar arch, often
anastomosing with the superficial palmar branch of the radial
artery
• Muscular branches - Neighboring muscles
• Anastomosis - arterial anastomosis around the elbow joint
and wrist joint
• Nutrient arteries - radius and ulna bone
ARTERIES OF THE POSTERIOR FASCIAL COMPARTMENT
OF THE FOREARM
COMMON INTEROSSEOUS
ARTERY
ULNAR
ARTERY
ANTERIOR
INTEROSSEOUS
ARTERY
POSTERIOR
INTEROSSEOUS
ARETRY
ANTERIOR INTEROSSEOUS ARTERY
• It pass downward on the anterior surfaces of the interosseous
membrane
• It supply the adjoining muscles and bones
POSTERIOR INTEROSSEOUS ARTERY
• It pass downward on the posterior surface of the interosseous
membrane
• It supply the adjoining muscles and bones
• They both end by taking part in the anastomosis around the wrist
joint
RADIAL ARTERY
• Smaller of the terminal branch of the brachial artery
• Begins in the cubital fossa at the level of the neck of the
radius
• The radial artery leaves the forearm by winding around the lateral
aspect of the wrist
• reach the posterior surface of the hand
DRAINAGE
• Deep veins
– Follows the arteries previously mentioned
• Superficial veins
– Drain subcutaneous tissue and eventually drain into the axillary vein
• Superficial Veins
• The major superficial veins of the upper limb are the
cephalic and basilic veins. They are located within the
subcutaneous tissue of the upper limb.
• Basilic Vein
• The basilic vein originates from the dorsal venous network of
the hand and ascends the medial aspect of the upper limb.
• At the border of the teres major, the vein moves deep into the
arm. Here, it combines with the brachial veins from the deep
venous system to form the axillary vein.
• Cephalic Vein
• The cephalic vein also arises from the dorsal venous network
of the hand. It ascends the antero-lateral aspect of the upper
limb, passing anteriorly at the elbow.
• At the shoulder, the cephalic vein travels between the deltoid
and pectoralis major muscles (known as the deltopectoral
groove), and enters the axilla region via the clavipectoral
triangle. Within the axilla, the cephalic vein empties into
axillary vein.
• The cephalic and basilic veins are
connected at the elbow by
the median cubital vein.