Abductor Pollicis Brevis (APB)

Authors

Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Table 1

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Origin

• Flexor retinaculum¹
• Scaphoid¹
• Trapezium¹

Insertion

Lateral side of base of 1st proximal phalanx (via radial seasamoid)¹

Innervation

Recurrent Br. of Median N. (C8, T1)¹ # Action {#action}

1st CMC: Abduction¹

Notes

1.

Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.