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Deep Palmar Arch
Arteria Radialis Indicis
Arteria Princeps Pollicis
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- smaller branch of brachial artery
- begins in cubital fossa at level of neck of radius
- passes downward and laterally
- beneath brachioradialis
- resting on deep muscles of forearm
- in middle third radial nerve lies on lateral side
- in distal forearm lies on anterior surface of radius
- covered by skin and fascia only
- laterally
- tendon of brachioradialis
- medially
- tendon of flexor carpi radialis
- leaves forearm by winding around lateral aspect of wrist
- beneath tendons of
- abductor pollicis longus
- extensor pollicis brevis
- lies on lateral ligament of joint
- on dorsum of hand descends beneath tendon of extensor pollicis longus
- reaches interval between two heads of first dorsal interosseous muscle
- turns forward to enter palm between proximal ends of 1st and 2nd
metacarpal bones
- on entering palm turns medially between oblique and transverse heads of
adductor policis
- gives branches
- continues as Deep Palmar Arch
Branches
- muscular branches
- recurrent branch
- takes part in arterial anastomosis around elbow
- superficial palmar branch
- arises just above wrist
- enters palm by passing superficially or through muscles of thenar
eminence
- frequently joins ulnar artery to form superficial palmar arch
- branches on dorsum of hand
- take part in anastomosis around wrist
- dorsal digital branches
- to thumb and index finger
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