Ulnar Bursa

Description

Illustration of the ulnar and radial bursae, digital synovial sheaths

Radial, ulnar and flexor tendon sheaths

Name

• Palmar ulna bursa
• Ulnar bursa of the palm
• Ulnar bursa hand

General

• Encases the majority of flexor tendons as they pass deep to flexor retinaculum
• Muscles encased: flexor digitorum superficialis, flexor digitorum profundus

Gross Anatomy

• Originates at the level of pronator quadratus and continues distally to the mid palm
• Extends proximally up to 5 cm proximal to the flexor retinaculum
• It terminates at approximately 1-3 cm proximal to the flexor tendon sheaths of digits 2-4
• It may communicate with the smaller palmar radial bursa
• Continuous with the digital synovial sheath of the pinky

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Clinical Significance

• Palmar ulna bursitis

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See Also

• Wrist Anatomy Main
• Forearm Anatomy Main
• Bursae Anatomy Main

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