Anatomy study note · Upper limb

Palmar aponeurosis

A triangular thickening of the deep fascia in the centre of the palm.

Key points

• Apex: flexor retinaculum + palmaris longus.
• Four slips to the fingers.
• Anchors the skin for grip; protects the tendons.
• Dupuytren contracture (ring finger first).
• Connective tissue: from leftover mesenchyme.
• Dense CT: irregular (capsules) or regular (tendons, ligaments).

The full note in the atlas also covers

Features · Histology · Development · Clinical notes

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 3, PDF pp. 296–297
• Inderbir Singh’s Human Embryology, ch. 7, PDF pp. 94–95
• BRS Cell Biology & Histology, 7th ed., ch. 6, PDF p. 110

More from the upper limb

• Palmaris longus
• Pectoral nerves
• Pectoralis major
• Pectoralis minor
• Phalanges of the hand
• Pronator quadratus
• Pronator teres
• Radial artery
• Radial nerve
• Radioulnar joints and interosseous membrane
• Radius
• Rhomboid major

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