Hand Vessels

TERMINOLOGY

Abbreviations

• Abductor pollicis longus (APL)
• Extensor pollicis longus (EPL)
• Extensor pollicis brevis (EPB)
• Flexor retinaculum (FR)
• Pronator quadratus (PQ)

GROSS ANATOMY

Arteries

• Radial artery

Terminal branch of brachial artery

Located superficial to PQ, then continues dorsally around radial styloid process, then passes deep to APL and EPB, across anatomic snuffbox and deep to EPL

Branches of radial artery

– Superficial palmar branch continues distally superficial to FR through thenar eminence to anastomose with ulnar artery as superficial palmar arch

Deep palmar arch is continuation of radial artery in hand

– Main radial artery continues dorsally at radial styloid across anatomic snuffbox deep to EPB and APL

– Passes over dorsal aspect of scaphoid bone

– Passes between heads of 1st dorsal interosseus muscle to enter palm; joins ulnar artery to form deep palmar arch

– Deep palmar arch is located at level of metacarpal bases 1 cm proximal to superficial palmar arch

– Lies deep to long flexor tendons and superficial to interossei

– Deep branch of ulnar nerve lies on convexity of deep palmar arch

– Princeps pollicis artery, radial artery of index finger, and palmar metacarpal arteries arise from deep palmar arch
• Ulnar artery

Terminal branch of brachial artery

Located superficial to PQ, then runs between flexor carpi ulnaris and flexor digitorum superficialis tendons

Branches of ulnar artery

Common interosseus artery branches in forearm divide into anterior and posterior interosseus arteries

– Anterior interosseus artery travels distally; at proximal PQ, gives small branch that pierces membrane, enters dorsal forearm, and anastomoses with posterior interosseus artery

– Median artery (branch of anterior interosseus artery) arises in forearm and may persist accompanying median nerve into carpal tunnel, contributing to superficial palmar arch

– Posterior interosseus artery travels distally between deep and superficial extensors to anastomose with anterior interosseus artery

Superficial palmar arch is continuation of ulnar artery in hand

– Located along line extended in arch across palm from thumb web space

– Similar to metacarpal shaft level ~ 1 cm distal to deep palmar arch

– Located deep to palmar aponeurosis but superficial to long flexor tendons and digital nerves

– Common palmar digital arteries arise from superficial palmar arch

– Run distally on surface of 2nd, 3rd, and 4th lumbrical muscles

– Near metacarpophalangeal joints, each common palmar digital artery divides into 2 proper digital arteries

– Run in subcutaneous fat of digits (lateral aspects)

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Apr 9, 2020 | Posted by admin in MUSCULOSKELETAL IMAGING | Comments Off

TERMINOLOGY

Abbreviations

GROSS ANATOMY

Arteries

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Radiology Key

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Hand Vessels

Hand Vessels

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Radiology Key

Fastest Radiology Insight Engine

Hand Vessels

Hand Vessels

TERMINOLOGY

Abbreviations

GROSS ANATOMY

Arteries

Share this:

Related posts:

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Full access? Get Clinical Tree