Adductor Pollicis
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Tendons:
Origin:
OBLIQUE HEAD: palmar surfaces of the
Trapezoid,
the
Trapezium
and
Capitate
as well as the bases of the
Index
and
Middle
metacarpals
TRANSVERSE HEAD: palmar surface of the shaft of the
Middle metacarpal
Insertion: The palmar ulnar base of the
Thumb Proximal Phalanx,
the
Thumb Ulnar MCP Sesamoid,
and the
Thumb extensor mechanism
Function: radially adducts the thumb
basal joint
along with other
muscles which radially adduct the basal joint,
and extends the thumb
interphalangeal Joint
Nerve:
Motor Branch of Ulnar Nerve
Artery:
Deep Palmar Arch
Anatomy Home Page
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